Haste

Boast -- {1}: You may change Arni Brokenbrow's base power to 1 plus the greatest power among other creatures you control until end of turn. (Activate only if this creature attacked this turn and only once each turn.)

{2}{W}: Tap target creature.

{2}{U}: Counter target activated ability. (Mana abilities can't be targeted.)

{3}{U}: Draw a card.

Return up to three target artifacts and/or creatures to their owners' hands.

You may cast a spell with mana value 4 or less from your hand without paying its mana cost.

(Gain the next level as a sorcery to add its ability.)

If you would roll one or more dice, instead roll that many dice plus one and ignore the lowest roll.

{1}{R}: Level 2

Whenever you roll one or more dice, target creature you control gets +2/+0 and gains menace until end of turn.

{2}{R}: Level 3

Creatures you control have haste.

Flying

Players can't cast spells during combat.

{R}: Target creature attacks this turn if able.

Equipped creature has haste.

Whenever an ability of equipped creature is activated, if it isn't a mana ability, you may pay {1}. If you do, copy that ability. You may choose new targets for the copy.

Equip {2}

Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.

{T}: The next time target creature adapts this turn, it adapts as though it had no +1/+1 counters on it.

Level up {3}{R} ({3}{R}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-2

2/3

{T}: Brimstone Mage deals 1 damage to any target.

LEVEL 3+

2/4

{T}: Brimstone Mage deals 3 damage to any target.

Castle Locthwain enters the battlefield tapped unless you control a Swamp.

{T}: Add {B}.

{1}{B}{B}, {T}: Draw a card, then you lose life equal to the number of cards in your hand.

Dark Depths enters the battlefield with ten ice counters on it.

{3}: Remove an ice counter from Dark Depths.

When Dark Depths has no ice counters on it, sacrifice it. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.

Flying

{8}: Tap all creatures target player controls.

Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)

As long as Deadeye Navigator is paired with another creature, each of those creatures has "{1}{U}: Exile this creature, then return it to the battlefield under your control."

Prototype {4}{U}{U} -- 6/6 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

Depth Charge Colossus doesn't untap during your untap step.

{3}: Untap Depth Charge Colossus.

Haste

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

{T}: When you next activate an ability that isn't a mana ability this turn by spending four or more mana to activate it, copy that ability. You may choose new targets for the copy.

Level up {1}{U} ({1}{U}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 2-3

2/4

{U}{U}, {T}: Copy target instant or sorcery spell. You may choose new targets for the copy.

LEVEL 4+

2/5

{U}{U}, {T}: Copy target instant or sorcery spell twice. You may choose new targets for the copies.

Level up {1}{U} ({1}{U}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-2

0/1

{T}: Draw a card, then discard a card.

LEVEL 3+

0/1

{T}: Draw a card.

Flying, lifelink, hexproof from planeswalkers

Boast -- {1}{B}, Sacrifice a creature: Each opponent sacrifices a creature or planeswalker. (Activate only if this creature attacked this turn and only once each turn.)

Experiment Kraj has all activated abilities of each other creature with a +1/+1 counter on it.

{T}: Put a +1/+1 counter on target creature.

(Gain the next level as a sorcery to add its ability.)

When Fighter Class enters the battlefield, search your library for an Equipment card, reveal it, put it into your hand, then shuffle.

{1}{R}{W}: Level 2

Equip abilities you activate cost {2} less to activate.

{3}{R}{W}: Level 3

Whenever a creature you control attacks, up to one target creature blocks it this combat if able.

Creatures you control have haste.

Sacrifice Fires of Yavimaya: Target creature gets +2/+2 until end of turn.

Flying

{U}, Sacrifice Glen Elendra Archmage: Counter target noncreature spell.

Persist (When this creature 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.)

{4}{B}, Sacrifice a creature: Return target creature card from your graveyard to your hand.

{4}{G}: Put a +1/+1 counter on target creature.

Level up {1}{B} ({1}{B}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 2-3

2/2

{B}, {T}: Target creature gets -2/-2 until end of turn.

LEVEL 4+

4/4

{B}, {T}: Target creature gets -4/-4 until end of turn.

{1}: You may cast target creature card in a graveyard this turn. When you cast it this turn, Havengul Lich gains all activated abilities of that card until end of turn.

Level up {2}{W} ({2}{W}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-4

1/4

If a source would deal damage to you or a creature you control, prevent 1 of that damage.

LEVEL 5+

2/5

If a source would deal damage to you or a creature you control, prevent 2 of that damage.

Level up {1} ({1}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 3-7

4/4

Protection from instants

LEVEL 8+

6/6

Protection from everything

Whenever an ability of equipped creature is activated, if it isn't a mana ability, copy that ability. You may choose new targets for the copy.

Equip {3}

{2}{G}: Create a 1/1 green Saproling creature token.

Level up {1}{G} ({1}{G}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-4

1/2

{T}: Add {G}{G}.

LEVEL 5+

1/4

Elves you control have "{T}: Add {G}{G}."

{B}, {T}: Target player loses 1 life.

{G}, {T}: Create a 1/1 green Saproling creature token.

Level up {2}{W} ({2}{W}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 2-4

3/6

Other creatures you control get +1/+1.

LEVEL 5+

4/8

Other creatures you control get +2/+2.

Level up {1}{G} ({1}{G}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 2-5

1/1

{T}: Create a 3/3 green Elephant creature token.

LEVEL 6+

1/1

{T}: Create two 3/3 green Elephant creature tokens.

{T}: Exile the top card of your library. If it's a land card, put it into your hand. Otherwise, put a study counter on it.

{4}{G}: Create a 0/0 green and blue Fractal creature token. Put a +1/+1 counter on it for each different mana value among nonland cards you own in exile with study counters on them.

Flying

{X}{U}{U}, {T}: Exile the top X cards of your library and put a study counter on each of them. Then you may put a card you own in exile with a study counter on it into your hand.

Whenever you tap a nonland permanent for mana, add one mana of any type that permanent produced.

{5}{G}{U}: Look at the top five cards of your library. You may put a non-Human creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

{1}{B}{G}: Target creature gets +1/+1 and gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

{2}{B}{G}, Sacrifice a nontoken creature: Create X 1/1 green Saproling creature tokens, where X is the sacrificed creature's toughness.

Level up {U} ({U}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 4-6

2/4

LEVEL 7+

3/5

At the beginning of each end step, if it's not your turn, take an extra turn after this one.

{2}, {T}: Copy target activated or triggered ability you control. You may choose new targets for the copy.

{3}, {T}: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

{4}, {T}: Copy target permanent spell you control. (The copy becomes a token.)

Level up {1}{R} ({1}{R}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-5

6/6

LEVEL 6+

6/6

Whenever Lord of Shatterskull Pass attacks, it deals 6 damage to each creature defending player controls.

{1}, {T}: Untap target creature that has an activated ability with {T} in its cost.

{U}, {T}: Draw two cards.

{R}, {T}, Discard a card: Mercurial Chemister deals damage to target creature equal to the discarded card's mana value.

{W}{U}: Target creature gains flying until end of turn.

{3}{W}{U}: Detain target nonland permanent an opponent controls. (Until your next turn, that permanent can't attack or block and its activated abilities can't be activated.)

{1}{U}{R}: Draw a card, then discard a card.

{2}{U}{R}: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

(Gain the next level as a sorcery to add its ability.)

Spells your opponents cast during your turn cost {1} more to cast.

{2}{W}: Level 2

Creatures you control get +1/+1.

{4}{W}: Level 3

Whenever you attack, until end of turn, target attacking creature gets +1/+1 for each other attacking creature and gains double strike.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

{1}, Sacrifice Qasali Pridemage: Destroy target artifact or enchantment.

({B/R} can be paid with either {B} or {R}.)

{3}{B}, Discard a card: Target creature gets -2/-2 until end of turn.

{3}{R}: Create a 2/1 red Goblin creature token with haste. Exile it at the beginning of the next end step.

(Gain the next level as a sorcery to add its ability.)

When Ranger Class enters the battlefield, create a 2/2 green Wolf creature token.

{1}{G}: Level 2

Whenever you attack, put a +1/+1 counter on target attacking creature.

{3}{G}: Level 3

You may look at the top card of your library any time.

You may cast creature spells from the top of your library.

Draw cards equal to the greatest power among creatures you control.

You may cast a spell with mana value 5 or less from your hand without paying its mana cost.

{B}{R}: Target blocking creature gets -1/-1 until end of turn.

{B}{R}: Target player who lost life this turn loses 1 life.

(Gain the next level as a sorcery to add its ability.)

Whenever a creature you control deals combat damage to a player, exile the top card of that player's library face down. You may look at it for as long as it remains exiled.

{1}{U}{B}: Level 2

Creatures you control have menace.

{2}{U}{B}: Level 3

You may play cards exiled with Rogue Class, and you may spend mana as though it were mana of any color to cast those spells.

{2}, Return Rootha, Mercurial Artist to its owner's hand: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

{3}{G}: Create a 1/1 green Saproling creature token.

{3}{W}: Creatures you control get +1/+1 until end of turn.

{7}{B}: Target creature gets -3/-3 until end of turn.

Create three 1/1 colorless Servo artifact creature tokens.

You may cast a spell with mana value 3 or less from your hand without paying its mana cost.

At the beginning of your upkeep, draw a card.

{T}: Staff of Nin deals 1 damage to any target.

Haste

{U}{R}, {T}: Copy target activated or triggered ability you control from an artifact source. You may choose new targets for the copy. (Mana abilities can't be targeted.)

Each creature you control has "{T}: Add one mana of any of this creature's colors. Spend this mana only to activate an ability of a creature. Activate only if this creature has another activated ability."

{W}{U}{B}{R}{G}, {T}: Mill five cards. Put all creature cards with activated abilities that aren't mana abilities from among the milled cards into your hand.

Haste

{1}, {T}: Copy target activated or triggered ability you control from another legendary source that's not a commander. You may choose new targets for the copy. (Mana abilities can't be targeted.)

Level up {1} ({1}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 6-11

6/6

Lifelink

LEVEL 12+

9/9

Lifelink, indestructible

Sleight of Hand -- {8}: Draw two cards.

{8}: Valakut Invoker deals 3 damage to any target.

Deathtouch

Boast -- {1}{B}: Target player searches their library for a card, then shuffles and puts that card on top. (Activate only if this creature attacked this turn and only once each turn.)

As Vesuvan Shapeshifter enters the battlefield or is turned face up, you may choose another creature on the battlefield. If you do, until Vesuvan Shapeshifter is turned face down, it becomes a copy of that creature, except it has "At the beginning of your upkeep, you may turn this creature face down."

Morph {1}{U}

{4}{G}{W}: Create a 3/3 green Centaur creature token.

{2}{G}{W}: Populate. (Create a token that's a copy of a creature token you control.)

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

{2}{B}, {T}: Put a petrification counter on target creature. It gains defender and becomes a colorless artifact in addition to its other types. Its activated abilities can't be activated. (A creature with defender can't attack.)

All creatures get -3/-3 until end of turn.

You may cast a spell with mana value 3 or less from your hand without paying its mana cost.

Companion -- Each permanent card in your starting deck has an activated ability. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.)

Abilities you activate that aren't mana abilities cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.

{1}, {T}: Target creature can't block this turn.