Trample

Agent Frank Horrigan has indestructible as long as it attacked this turn.

Whenever Agent Frank Horrigan enters the battlefield or attacks, proliferate twice. (To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Add one mana of any color in your commander's color identity.

Destroy target nonland permanent. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Add {G}.

{T}: Add {U}.

Flying

{T}: Add one mana of any color.

Flying

Bloatfly Swarm enters the battlefield with five +1/+1 counters on it.

If damage would be dealt to Bloatfly Swarm while it has a +1/+1 counter on it, prevent that damage, remove that many +1/+1 counters from it, then give each player a rad counter for each +1/+1 counter removed this way.

At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on Bloodchief Ascension. (Damage causes loss of life.)

Whenever a card is put into an opponent's graveyard from anywhere, if Bloodchief Ascension has three or more quest counters on it, you may have that player lose 2 life. If you do, you gain 2 life.

Bojuka Bog enters the battlefield tapped.

When Bojuka Bog enters the battlefield, exile target player's graveyard.

{T}: Add {B}.

({T}: Add {G} or {U}.)

As Breeding Pool enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Enchant creature

At the beginning of your upkeep, you may look at the top five cards of your library. If you do, you may put a creature card that shares a creature type with enchanted creature from among them onto the battlefield, then you put the rest of those cards on the bottom of your library in any order.

Destroy target artifact, enchantment, or creature with flying. If that permanent's mana value was 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Add {U}.

{T}: Add {B}.

{T}: Add one mana of any color in your commander's color identity.

Sacrifice Commander's Sphere: Draw a card.

You may play lands from your graveyard.

{T}: Choose target nonland permanent card in your graveyard. If you haven't cast a spell this turn, you may cast that card. If you do, you can't cast additional spells this turn. Activate only as a sorcery.

When Contagion Clasp enters the battlefield, put a -1/-1 counter on target creature.

{4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

When Contagion Engine enters the battlefield, put a -1/-1 counter on each creature target player controls.

{4}, {T}: Proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

Draw X cards, then you get half X rad counters, rounded up.

Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Draw a card.

You may play lands from your graveyard.

{T}: Add {B}.

{T}: Add {G}.

Darkmoss Bridge enters the battlefield tapped.

Indestructible

{T}: Add {B} or {G}.

Deathcap Glade enters the battlefield tapped unless you control two or more other lands.

{T}: Add {B} or {G}.

{T}: Exile target land card from a graveyard. Add one mana of any color.

{B}, {T}: Exile target instant or sorcery card from a graveyard. Each opponent loses 2 life.

{G}, {T}: Exile target creature card from a graveyard. You gain 2 life.

Search your library for a card, put that card into your hand, then shuffle.

At the beginning of your upkeep, reveal the top card of your library. If it's a creature card that shares a creature type with a creature you control, you may cast it without paying its mana cost. If you don't cast it, put it on the bottom of your library.

You may play an additional land on each of your turns.

When Ezuri, Stalker of Spheres enters the battlefield, you may pay {3}. If you do, proliferate twice.

Whenever you proliferate, draw a card.

Search your library for an artifact card, reveal it, put it into your hand, then shuffle.

{T}: Add one mana of any color that a land an opponent controls could produce.

Menace

Whenever another creature you control dies, put a +1/+1 counter on Feral Ghoul.

When Feral Ghoul dies, each opponent gets a number of rad counters equal to its power.

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

Counter target spell, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Deathtouch

Whenever Glowing One deals combat damage to a player, they get four rad counters.

Whenever a player mills a nonland card, you gain 1 life.

Whenever a nontoken creature enters the battlefield under your control, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.

Vigilance, reach

When Harold and Bob, First Numens dies, if it was a creature, return it to the battlefield. It's an Aura enchantment with enchant Forest you control and "Enchanted Forest has '{T}: Add three mana of any one color. You get two rad counters.'" Harold and Bob loses all other abilities.

Whenever you cast a spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying

Infesting Radroach can't block.

Whenever Infesting Radroach deals combat damage to a player, they get that many rad counters.

Whenever an opponent mills a nonland card, if Infesting Radroach is in your graveyard, you may return it to your hand.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

{T}: Add {C}.

{4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

You may have Mariposa Military Base enter the battlefield tapped. If you do, you get two rad counters.

{T}: Add {C}.

{5}, {T}: Draw a card. This ability costs {1} less to activate for each rad counter you have.

Whenever a permanent becomes untapped, that permanent's controller mills a card.

{T}: Add {C}.

{1}, {T}, Sacrifice Mind Stone: Draw a card.

Vigilance

When Mirelurk Queen enters the battlefield, target player gets two rad counters.

Whenever one or more nonland cards are milled, draw a card, then put a +1/+1 counter on Mirelurk Queen. This ability triggers only once each turn.

Mistvault Bridge enters the battlefield tapped.

Indestructible

{T}: Add {U} or {B}.

{T}, Pay 1 life, Sacrifice Misty Rainforest: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.

Morphic Pool enters the battlefield tapped unless you have two or more opponents.

{T}: Add {U} or {B}.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)

When Nightkin Ambusher enters the battlefield, target player gets four rad counters.

Nightkin Ambusher can't be blocked as long as defending player has a rad counter.

Each creature gets twice -X/-X until end of turn. Each player gets X rad counters.

Equipped creature gets +3/+0 and has intimidate. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever equipped creature attacks, until the end of defending player's next turn, that player gets two rad counters whenever they cast a spell.

Equip {3}

Opulent Palace enters the battlefield tapped.

{T}: Add {B}, {G}, or {U}.

({T}: Add {B} or {G}.)

As Overgrown Tomb enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}: Add one mana of any color.

{1}, {T}: Untap target legendary creature you control.

When Pollenbright Druid enters the battlefield, choose one --

• Put a +1/+1 counter on target creature.

• Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Destroy target artifact or creature. It can't be regenerated.

Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Once during each of your turns, you may cast a spell from among cards in your graveyard that were milled this turn.

{T}: Each player mills a card. (They each put the top card of their library into their graveyard.)

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to its mana value.

Counter target spell. If that spell's mana value was 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Rejuvenating Springs enters the battlefield tapped unless you have two or more opponents.

{T}: Add {G} or {U}.

Whenever you proliferate, each opponent loses 2 life and you gain 2 life.

Flying, menace

Whenever Screeching Scorchbeast attacks, each player gets two rad counters.

Whenever one or more nonland cards are milled, you may create that many 2/2 black Zombie Mutant creature tokens. Do this only once each turn.

{T}: Add {U}.

Untap all permanents you control during each other player's untap step.

Shipwreck Marsh enters the battlefield tapped unless you control two or more other lands.

{T}: Add {U} or {B}.

Search your library for up to two Forest cards, put them onto the battlefield, then shuffle.

{T}: Add {C}{C}.

Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Draw a card.

Ward {2}

Enrage -- Whenever Strong is dealt damage, you get three rad counters and put three +1/+1 counters on Strong.

You gain life rather than lose life from radiation.

As Struggle for Project Purity enters the battlefield, choose Brotherhood or Enclave.

• Brotherhood -- At the beginning of your upkeep, each opponent draws a card. You draw a card for each card drawn this way.

• Enclave -- Whenever a player attacks you with one or more creatures, that player gets twice that many rad counters.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

{T}: Add {B}.

Channel -- {3}{B}, Discard Takenuma, Abandoned Mire: Mill three cards, then return a creature or planeswalker card from your graveyard to your hand. This ability costs {1} less to activate for each legendary creature you control.

Tanglepool Bridge enters the battlefield tapped.

Indestructible

{T}: Add {G} or {U}.

Landfall -- Whenever a land enters the battlefield under your control, you may get two rad counters.

{T}: Put target land card in a graveyard that was milled this turn onto the battlefield under your control tapped.

({U/P} can be paid with either {U} or 2 life.)

Draw two cards, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

When The Master, Transcendent enters the battlefield, target player gets two rad counters.

{T}: Put target creature card in a graveyard that was milled this turn onto the battlefield under your control. It's a green Mutant with base power and toughness 3/3. (It loses its other colors and creature types.)

Flying

Whenever The Wise Mothman enters the battlefield or attacks, each player gets a rad counter.

Whenever one or more nonland cards are milled, put a +1/+1 counter on each of up to X target creatures, where X is the number of nonland cards milled this way.

Choose one --

• Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

• Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Add {G}.

You may activate abilities of creatures you control as though those creatures had haste.

+1: Untap up to one target creature.

-2: Mill three cards, then you may return a creature card with mana value 2 or less from your graveyard to the battlefield.

Undergrowth Stadium enters the battlefield tapped unless you have two or more opponents.

{T}: Add {B} or {G}.

Return target permanent card from your graveyard to your hand. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Untap all artifacts you control during each other player's untap step.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I -- Urza's Saga gains "{T}: Add {C}."

II -- Urza's Saga gains "{2}, {T}: Create a 0/0 colorless Construct artifact creature token with 'This creature gets +1/+1 for each artifact you control.'"

III -- Search your library for an artifact card with mana cost {0} or {1}, put it onto the battlefield, then shuffle.

Put target creature card from a graveyard onto the battlefield under your control. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I -- Each player gets three rad counters.

II -- Create X 2/2 black Zombie Mutant creature tokens, where X is the total number of rad counters among players.

III -- Put two +1/+1 counters on each creature you control that's a Zombie or Mutant.

{T}: Add {B}.

Flying

Whenever Vexing Radgull deals combat damage to a player, that player gets two rad counters if they don't have any rad counters. Otherwise, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Graft 2 (This creature enters the battlefield with two +1/+1 counters on it. Whenever another creature enters the battlefield, you may move a +1/+1 counter from this creature onto it.)

{1}{U}: Untap target creature with a +1/+1 counter on it.

Trample, haste

If you would put one or more counters on a permanent or player, put twice that many of each of those kinds of counters on that permanent or player instead.

If an opponent would put one or more counters on a permanent or player, they put half that many of each of those kinds of counters on that permanent or player instead, rounded down.

Target creature gets -1/-1 until end of turn. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

({T}: Add {B}, {G}, or {U}.)

Zagoth Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)