When this creature enters the battlefield, you may put a name sticker on it. Add for each unique vowel on that sticker. (The vowels are A, E, I, O, U, and Y.)

: Add .

, : Add .

When Ardent Electromancer enters the battlefield, add for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Arixmethes, Slumbering Isle enters the battlefield tapped with five slumber counters on it.

As long as Arixmethes has a slumber counter on it, it's a land. (It's not a creature.)

Whenever you cast a spell, you may remove a slumber counter from Arixmethes.

: Add .

: Add .

All Slivers have "Sacrifice this permanent: Add ."

Creatures you control have ": Add . This mana can't be spent to cast a nonartifact spell."

Whenever you cast an artifact spell with mana value 6 or greater, draw a card.

Devoid (This card has no color.)

When Birthing Hulk enters the battlefield, create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add ." ( represents colorless mana.)

: Regenerate Birthing Hulk.

, Pay 1 life: Add .

Sacrifice Blood Pet: Add .

: Add .

Whenever you discard a creature card, create a 2/2 black Zombie creature token.

Whenever you discard a land card, add .

Whenever you discard a noncreature, nonland card, draw a card.

: Add .

, , Discard a card: Return Bramble Familiar to its owner's hand.

Devoid (This card has no color.)

When Brood Monitor enters the battlefield, create three 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add ."

Other Elves you control get +1/+1.

: Add .

Devoid (This card has no color.)

When Catacomb Sifter enters the battlefield, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add ."

Whenever another creature you control dies, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

When Cathodion dies, add .

: Add . Spend this mana only to cast an Elemental spell or a Chandra planeswalker spell.

Vigilance

Formidable — : Add . Activate only if creatures you control have total power 8 or greater.

, Sacrifice Coal Golem: Add .

You can't cast permanent spells.

, : Add . When you next cast a spell this turn, exile cards from the top of your library until you exile an instant or sorcery card with lesser mana value. Until end of turn, you may cast that card without paying its mana cost. Put each other card exiled this way on the bottom of your library in a random order.

Sacrifice Composite Golem: Add .

Whenever Conduit of Storms attacks, add at the beginning of your next main phase this turn.

: Transform Conduit of Storms.

Haste

, : Add . Spend this mana only to cast instant and/or sorcery spells.

When Cormela, Glamour Thief dies, return up to one target instant or sorcery card from your graveyard to your hand.

, Sacrifice Crosis's Attendant: Add .

Devoid (This card has no color.)

: Add . Spend this mana only to cast a colorless spell, activate an ability of a colorless permanent, or pay a cost that contains . ( represents colorless mana.)

: Add . Spend this mana only to cast artifact spells or activate abilities of artifacts.

Equipped creatures you control have flying and haste.

Trample

When this creature transforms into Deadly Dancer, add . Until end of turn, you don't lose this mana as steps and phases end.

: Deadly Dancer and another target creature each get +1/+0 until end of turn.

: Add .

: Add one mana of any color. Spend this mana only to cast a legendary spell, and that spell can't be countered.

: Add .

Put a -1/-1 counter on Devoted Druid: Untap Devoted Druid.

, Sacrifice Dromar's Attendant: Add .

: Add , , or .

: Add for each Crossbreed Labs watermark among permanents you control.

(Dryad Arbor isn't a spell, it's affected by summoning sickness, and it has ": Add .")

: Add .

: Add . Spend this mana only to cast kicked spells.

: Add .

Forestcycling (, Discard this card: Search your library for a Forest card, reveal it, put it into your hand, then shuffle.)

: Add .

When Emrakul's Hatcher enters the battlefield, create three 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add ."

Devoid (This card has no color.)

When Eyeless Watcher enters the battlefield, create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add ."

: Add . If this ability has been activated four or more times this turn, sacrifice Farrelite Priest at the beginning of the next end step.

Flying

, : Add .

: Add .

Alliance — Whenever another creature enters the battlefield under your control, choose one that hasn't been chosen this turn —

• Add .

• Put a +1/+1 counter on each creature you control.

• Scry 2, then draw a card.

At the beginning of your end step, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

: Draw a card and put a +1/+1 counter on Geology Enthusiast.

: Add . When you spend this mana to cast a spell with mana value 6 or greater, draw a card.

Partner (You can have two commanders if both have partner.)

, Pay 1 life: Add . Spend this mana only to cast an Elf creature spell.

: Target attacking Elf you control gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

: Add .

When Great Desert Prospector enters the battlefield, create a tapped Powerstone token for each other creature you control. (They're artifacts with ": Add . This mana can't be spent to cast a nonartifact spell.")

, Return Grinning Ignus to its owner's hand: Add . Activate only as a sorcery.