Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Creatures you control have flying, first strike, vigilance, trample, haste, and protection from black and from red.

Whenever a permanent enters the battlefield tapped and under your control, untap it.

Whenever another nontoken creature enters the battlefield under your control, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)

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

Creatures you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)

{1}{G}: Regenerate target creature.

Exile two target nonartifact creatures. Ashes to Ashes deals 5 damage to you.

Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

Flying, vigilance, indestructible

Other permanents you control have indestructible.

Azorius Guildgate enters the battlefield tapped.

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

Bestow {4}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Enchanted creature gets +1/+1 and has deathtouch.

Blackcleave Cliffs enters the battlefield tapped unless you control two or fewer other lands.

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

Flying

Whenever you cast an enchantment spell, put a +1/+1 counter on Blessed Spirits.

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

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

Bloodfell Caves enters the battlefield tapped.

When Bloodfell Caves enters the battlefield, you gain 1 life.

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

Blossoming Sands enters the battlefield tapped.

When Blossoming Sands enters the battlefield, you gain 1 life.

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

Boros Guildgate enters the battlefield tapped.

{T}: Add {R} or {W}.

({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.

Counter target spell.

As Cavern of Souls enters the battlefield, choose a creature type.

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Whenever City of Brass becomes tapped, it deals 1 damage to you.

{T}: Add one mana of any color.

Copperline Gorge enters the battlefield tapped unless you control two or fewer other lands.

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

Return target nonland permanent you don't control to its owner's hand.

Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Darkslick Shores enters the battlefield tapped unless you control two or fewer other lands.

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

Dimir Guildgate enters the battlefield tapped.

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

Dismal Backwater enters the battlefield tapped.

When Dismal Backwater enters the battlefield, you gain 1 life.

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

Bestow {2}{W}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Eidolon of Countless Battles and enchanted creature each get +1/+1 for each creature you control and +1/+1 for each Aura you control.

Each player can't cast more than one spell each turn.

Vigilance

Other creatures you control get +2/+2.

Creatures your opponents control get -2/-2.

Bestow {2}{R} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

{R}: Everflame Eidolon gets +1/+0 until end of turn. If it's an Aura, enchanted creature gets +1/+0 until end of turn instead.

Enchanted creature gets +1/+1.

Exile target creature.

Bestow {5}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Flitterstep Eidolon can't be blocked.

Enchanted creature gets +1/+1 and can't be blocked.

When Forbidding Spirit enters the battlefield, until your next turn, creatures can't attack you or planeswalkers you control unless their controller pays {2} for each of those creatures.

({T}: Add {G}.)

Foul Orchard enters the battlefield tapped.

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

Frontier Bivouac enters the battlefield tapped.

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

Gateway Plaza enters the battlefield tapped.

When Gateway Plaza enters the battlefield, sacrifice it unless you pay {1}.

{T}: Add one mana of any color.

Flying

Vigilance

Geist-Honored Monk's power and toughness are each equal to the number of creatures you control.

When Geist-Honored Monk enters the battlefield, create two 1/1 white Spirit creature tokens with flying.

Bestow {5}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Double strike (This creature deals both first-strike and regular combat damage.)

Enchanted creature gets +1/+1 and has double strike.

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

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

Golgari Guildgate enters the battlefield tapped.

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

{T}: Add {C}.

{T}: Add {R} or {G}. Each opponent gains 1 life.

Gruul Guildgate enters the battlefield tapped.

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

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

{R/G}{R/G}{R/G}{R/G}, {T}, Sacrifice Gruul Locket: Draw two cards.

Attacking creatures you control get +1/+0 and have menace.

Protection from monocolored

Creatures your opponents control get -1/-0.

{T}: Add {C}.

{T}: Each player gains control of all creatures they own.

Bestow {3}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Enchanted creature gets +1/+1 and has lifelink.

({T}: Add {U}.)

Izzet Guildgate enters the battlefield tapped.

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

Jungle Hollow enters the battlefield tapped.

When Jungle Hollow enters the battlefield, you gain 1 life.

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

Sacrifice Keening Apparition: Destroy target enchantment.

Flying

Creatures you control have "Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."

The first spell you cast each turn has cascade. (When you cast your first spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever a Human deals damage to you, destroy it.

Other non-Human creatures you control get +1/+1 and have undying. (When a creature with undying dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Morbid -- When Morkrut Banshee enters the battlefield, if a creature died this turn, target creature gets -4/-4 until end of turn.

Changeling (This card is every creature type.)

As Morophon, the Boundless enters the battlefield, choose a creature type.

Spells of the chosen type you cast cost {W}{U}{B}{R}{G} less to cast. This effect reduces only the amount of colored mana you pay.

Other creatures you control of the chosen type get +1/+1.

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

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

Destroy target artifact or enchantment.

Bestow {4}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Enchanted creature gets +2/+1.

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

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

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

Play with the top card of your library revealed.

You may play lands from the top of your library.

Orchard Spirit can't be blocked except by creatures with flying or reach.

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

{W}{B}, {T}, Sacrifice Orzhov Cluestone: Draw a card.

Skulk (This creature can't be blocked by creatures with greater power.)

When Pale Rider of Trostad enters the battlefield, discard a card.

Each player chooses a creature type. Each player returns all creature cards of a type chosen this way from their graveyard to the battlefield.

Creature tokens you control get +1/+1.

When a creature you control dies, sacrifice Promise of Bunrei. If you do, create four 1/1 colorless Spirit creature tokens.

Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.

Flying

Sacrifice Remorseful Cleric: Exile target player's graveyard.

Flying

Revenant's power and toughness are each equal to the number of creature cards in your graveyard.

Exile target artifact or enchantment.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Rugged Highlands enters the battlefield tapped.

When Rugged Highlands enters the battlefield, you gain 1 life.

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

Flying

Scoured Barrens enters the battlefield tapped.

When Scoured Barrens enters the battlefield, you gain 1 life.

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

Selesnya Guildgate enters the battlefield tapped.

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

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

{G/U}{G/U}{G/U}{G/U}, {T}, Sacrifice Simic Locket: Draw two cards.

Flying

When Soul Seizer deals combat damage to a player, you may transform it. If you do, attach it to target creature that player controls.

Enchant creature

You control enchanted creature.

Soulsworn Spirit can't be blocked.

When Soulsworn Spirit enters the battlefield, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)

Flash (You may cast this spell any time you could cast an instant.)

Flying

{3}{U}: Draw a card.

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

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

Flash

Flying

({T}: Add {B}.)

({T}: Add {B}.)

Swiftwater Cliffs enters the battlefield tapped.

When Swiftwater Cliffs enters the battlefield, you gain 1 life.

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

Until your next turn, your life total can't change and you gain protection from everything. All permanents you control phase out. (While they're phased out, they're treated as though they don't exist. They phase in before you untap during your untap step.)

Exile Teferi's Protection.

Draw three cards. Target player mills three cards.

Thornwood Falls enters the battlefield tapped.

When Thornwood Falls enters the battlefield, you gain 1 life.

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

Tranquil Cove enters the battlefield tapped.

When Tranquil Cove enters the battlefield, you gain 1 life.

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

Ugin's Conjurant enters the battlefield with X +1/+1 counters on it.

If damage would be dealt to Ugin's Conjurant while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from Ugin's Conjurant.

Flying

Flying

Woodland Stream enters the battlefield tapped.

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

Search your library for a creature card, reveal it, then shuffle and put the card on top.

{T}: Add {C}.

{G}, {T}: Regenerate target creature.