Zendikar / Alara / Lorwyn Era

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

{3}, Sacrifice this artifact: Regenerate target creature.

Create a token that's a copy of target creature, except it has haste and "At the beginning of the end step, exile this token."

When this creature enters, create two 3/1 red Elemental Shaman creature tokens. Sacrifice an Elemental: Target Giant creature gets +3/+1 until end ...

Regenerate target creature. You gain life equal to that creature's toughness.

{W}, {T}: This creature deals X damage to target attacking or blocking creature, where X is the number of Merfolk you control.

Whenever another creature enters, you may put X +1/+1 counters on this creature, where X is that creature's power.

This creature can't be blocked except by three or more creatures. If a spell or ability you control would counter a spell, instead exile that spell...

When this creature enters, create three 1/1 white Kithkin Soldier creature tokens. {G}, Sacrifice a Kithkin: You gain 1 life.

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

{W}, {T}: Tap target creature.

This creature can't be blocked by creatures with power 4 or greater.

When this creature enters, untap target Goat and gain control of it until end of turn. It gains haste until end of turn.

Enchant tapped creature Enchanted creature doesn't untap during its controller's untap step.

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

Haste When this creature enters, up to two target creatures can't block this turn. Evoke {1}{R} (You may cast this spell for its evoke cost. If you...

{G}, {T}: Look at the top two cards of your library, then put them back in any order.

As this land enters, you may reveal an Elf card from your hand. If you don't, this land enters tapped. {T}: Add {B} or {G}.

Create two 1/1 green Elf Warrior creature tokens. Clash with an opponent. If you win, those creatures gain deathtouch until end of turn. (Each clas...

Giant's Ire deals 4 damage to target player or planeswalker. If you control a Giant, draw a card.

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

Changeling (This card is every creature type.) {1}{B}: This creature gets +1/+1 until end of turn.

[+1]: Untap two target lands. [−1]: Create a 3/3 green Beast creature token. [−4]: Creatures you control get +3/+3 and gain trample until end of turn.

Flying Whenever this creature attacks, exile another target creature. Return that card to the battlefield under its owner's control at the beginnin...