: Add or .

: Azorius Keyrune becomes a 2/2 white and blue Bird artifact creature with flying until end of turn.

(<b>D</b> is a land drop. You may give up one potential land drop this turn to pay for <b>D</b>.)

Whenever Boulder Jockey attacks, you may pay <b>D</b>. If you do, create a 3/3 colorless Construct artifact creature token named Boulder that's tapped and attacking. Sacrifice that token at the beginning of the next end step.

As long as CARDNAME is tapped, creatures you control have menace and deathtouch.

, Exile Expendable Lackey from your graveyard: Create a 1/1 blue Fish creature token with "This creature can't be blocked." Activate only as a sorcery.

Flying

Whenever Ghostly Keybearer deals combat damage to a player, unlock a locked door of up to one target Room you control.

: Add or .

: Golgari Keyrune becomes a 2/2 black and green Insect artifact creature with deathtouch until end of turn.

: Add or .

: Until end of turn, Izzet Keyrune becomes a 2/1 blue and red Elemental artifact creature.

Whenever Izzet Keyrune deals combat damage to a player, you may draw a card. If you do, discard a card.

Key to the Archive enters the battlefield tapped.

When Key to the Archive enters the battlefield, draft a card from Key to the Archive's spellbook, then discard a card.

: Add two mana in any combination of colors.

Keymaster Rogue can't be blocked.

When Keymaster Rogue enters, return a creature you control to its owner's hand.

First strike

, Do the Hokey Pokey: Prevent all damage a source of your choice would deal to Knight of the Hokey Pokey this turn. (To do the Hokey Pokey, choose an arm, a leg, or your whole self and put it in. Put it out. Put it in. Shake it all about. You do the Hokey Pokey Turn yourself around.)

Flying

Prowl (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Faerie or Rogue.)

When Latchkey Faerie enters, if its prowl cost was paid, draw a card.

, : Untap another target artifact.

, : Target creature can't be blocked this turn.

Whenever a nontoken creature you control dies,

Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

As Monkey Monkey Monkey enters, choose a letter.

Monkey Monkey Monkey gets +1/+1 for each nonland permanent whose name begins with the chosen letter.

When equipped creature deals combat damage to a player, sacrifice Mystery Key. If you do, draw three cards.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Whenever Plasma Jockey attacks, target creature an opponent controls can't block this turn.

Blitz (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

: Add or .

: Rakdos Keyrune becomes a 3/1 black and red Devil artifact creature with first strike until end of turn.

You can't cast Rock Jockey if you've played a land this turn.

You can't play lands if you've cast Rock Jockey this turn.

: Add or .

: Selesnya Keyrune becomes a 3/3 green and white Wolf artifact creature until end of turn.

: Add or .

: Simic Keyrune becomes a 2/3 green and blue Crab artifact creature with hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

When Staff of Eden, Vault's Key enters, put target legendary permanent card not named Staff of Eden, Vault's Key from a graveyard onto the battlefield under your control.

: Draw a card for each permanent you control but don't own.

When this creature enters,

exile target creature card with mana value 2 or less from your graveyard. If it has augment, combine it with a host you control. Otherwise, put it onto the battlefield.

Whenever equipped creature deals combat damage to a player, look at that many cards from the top of your library. You may exile a nonland card from among them. Put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost.

Equip

Reach (This creature can block creatures with flying.)

2 — : Target creature can't block this creature this turn.

4 — Morbid — At the beginning of each end step, if a creature died this turn and this permanent is a creature, put a -1/-1 counter on this permanent and draw a card.

2 — 2/4

3 — 7/2