Lorwyn

Whenever you cast a spell during an opponent's turn, you may have each opponent lose 1 life.

Changeling (This card is every creature type.) {1}{U}: Switch Turtleshell Changeling's power and toughness until end of turn.

As an additional cost to cast this spell, reveal a Kithkin card from your hand or pay {3}.

When Giant Harbinger enters the battlefield, you may search your library for a Giant card, reveal it, then shuffle and put that card on top.

{T}, Discard an Elf card: Target creature gets -X/-X until end of turn, where X is the number of Elves you control.

When Guardian of Cloverdell enters the battlefield, create three 1/1 white Kithkin Soldier creature tokens. {G}, Sacrifice a Kithkin: You gain 1 life.

Protection from red Sacrifice Burrenton Forge-Tender: Prevent all damage a red source of your choice would deal this turn.

When Benthicore enters the battlefield, create two 1/1 blue Merfolk Wizard creature tokens. Tap two untapped Merfolk you control: Untap Benthicore...

When Treefolk Harbinger enters the battlefield, you may search your library for a Treefolk or Forest card, reveal it, then shuffle and put that car...

Choose a Giant creature you control. It deals damage equal to its power to target creature.

Flash When Briarhorn enters the battlefield, target creature gets +3/+3 until end of turn. Evoke {1}{G} (You may cast this spell for its evoke co...

Whenever you clash and win, you may draw a card. (This ability triggers after the clash ends.)

As an additional cost to cast this spell, sacrifice a Goblin. Target creature gets -5/-5 until end of turn. Fodder Launch deals 5 damage to that c...

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) When Shriekmaw enters the battlefield, destroy target n...

Changeling (This card is every creature type.) Champion a creature (When this enters the battlefield, sacrifice it unless you exile another creatur...

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

Flying Whenever you cast a spell during an opponent's turn, you may return target creature you control to its owner's hand.

Changeling (This card is every creature type.) Haste Champion a creature (When this enters the battlefield, sacrifice it unless you exile another c...

Return target creature card from your graveyard to the battlefield with a mannequin counter on it. For as long as that creature has a mannequin cou...

Enchant creature At the beginning of your end step, clash with an opponent. If you win, gain control of enchanted creature. Otherwise, that player ...

Whenever you cast a Treefolk spell, you may have target creature get +3/-3 until end of turn.

As an additional cost to cast this spell, reveal a Merfolk card from your hand or pay {3}. When Silvergill Adept enters the battlefield, draw a card.

Whenever Veteran of the Depths becomes tapped, you may put a +1/+1 counter on it.

Whenever you activate an ability of an Elemental, Ceaseless Searblades gets +1/+0 until end of turn.