Return all attacking creatures to their owner's hand.

, Sacrifice this creature: Destroy target artifact or enchantment.

First strike
When this creature enters, destroy target nonartifact, nonblack creature. That creature can't be regenerated.

Changeling (This card is every creature type.)
Tap an untapped creature you control: This creature gains flying until end of turn.

At the beginning of your upkeep, exile the top card of your library. You may play that card this turn.
At the beginning of your end step, if you didn't play a card from exile this turn, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Each creature with the greatest mana value has protection from each color.

Equipped creature gets +1/+1.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

, Sacrifice this creature: Choose target creature or planeswalker an opponent controls. Its owner shuffles it into their library.

, Sacrifice this creature: Destroy target artifact or enchantment.

Heroic — Whenever you cast a spell that targets this creature, you may tap target creature.

When this creature enters, you may return target creature card from your graveyard to your hand.

Devoid (This card has no color.)
Haste
At the beginning of each end step, if you control no other colorless creatures, return this creature to its owner's hand.

This creature can't be blocked by creatures with power 2 or greater as long as defending player controls a snow land.

Visit — Target creature gains flying until end of turn, or until any player rolls a 1, whichever comes first.

: Target creature gains haste until end of turn. (It can attack and this turn.)

When this enchantment enters, draw a card.
If a source would deal damage to a creature you control, it deals that much damage minus 1 to that creature instead.

Reveal the top five cards of your library. You may put a creature card from among them into your hand. Put the rest into your graveyard.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, put up to two creature cards from among the revealed cards into your hand instead of one.

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

When Bill the Pony enters, create two Food tokens. (They're artifacts with ", , Sacrifice this token: You gain 3 life.")
Sacrifice a Food: Until end of turn, target creature you control assigns combat damage equal to its toughness rather than its power.