mtg.wtf

All Slivers have "Whenever this permanent becomes the target of a spell an opponent controls, you may draw a card."

Whenever a nontoken creature you control dies, create a 2/2 black Zombie creature token.

Return all artifact and enchantment cards from all graveyards to the battlefield under their owners' control.

X can't be greater than the number of players in the game.
Reveal cards from the top of your library until you reveal X land cards. Put those land cards onto the battlefield tapped and the rest on the bottom of your library in a random order.

Add {W}{U}{B}{R}{G}{C}. You may open a sealed Magic booster pack. Until end of turn, you may cast spells from among the cards in that booster pack.

Whenever Ophidian attacks and isn't blocked, you may draw a card. If you do, Ophidian assigns no combat damage this turn.

Flying
When Opportunistic Dragon enters the battlefield, choose target Human or artifact an opponent controls. For as long as Opportunistic Dragon remains on the battlefield, gain control of that permanent, it loses all abilities, and it can't attack or block.

Target player draws four cards.

Tap an untapped creature you control: Tap target artifact, creature, or land.

Whenever a player casts a spell, that player discards a card.

Scry 1.
Draw a card.

Opulent Palace enters the battlefield tapped.
{T}: Add {B}, {G}, or {U}.

You may play an additional land on each of your turns.
Play with the top card of your library revealed.
You may play lands from the top of your library.

{T}: All damage that would be dealt to target creature this turn by a source of your choice is dealt to Oracle's Attendants instead.

{2}, {T}: Exile the top card of your library. Until end of turn, you may play that card. Put a brick counter on Oracle's Vault.
{T}: Exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Activate only if there are three or more brick counters on Oracle's Vault.

Lifelink
Whenever Orah, Skyclave Hierophant or another Cleric you control dies, return target Cleric card with lesser mana value from your graveyard to the battlefield.

Trample
Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on Oran-Rief Hydra. If that land is a Forest, put two +1/+1 counters on Oran-Rief Hydra instead.

When Oran-Rief Ooze enters the battlefield, put a +1/+1 counter on target creature you control.
Whenever Oran-Rief Ooze attacks, put a +1/+1 counter on each attacking creature with a +1/+1 counter on it.

Oran-Rief, the Vastwood enters the battlefield tapped.
{T}: Add {G}.
{T}: Put a +1/+1 counter on each green creature that entered the battlefield this turn.

As an additional cost to cast this spell, you may reveal a Dragon card from your hand.
Defender, flying
When Orator of Ojutai enters the battlefield, if you revealed a Dragon card or controlled a Dragon as you cast this spell, draw a card.

{1}, {T}: Add two mana in any combination of colors. Spend this mana only to cast Dragon spells or activate abilities of Dragons.
{R}, {T}, Sacrifice Orb of Dragonkind: Look at the top seven cards of your library. You may reveal a Dragon card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Trample
Whenever another creature dies, put a +1/+1 counter on Orca, Siege Demon.
When Orca dies, it deals damage equal to its power divided as you choose among any number of targets.

{T}: Orcish Artillery deals 2 damage to any target and 3 damage to you.

Flash
When Orcish Bowmasters enters the battlefield and whenever an opponent draws a card except the first one they draw in each of their draw steps, Orcish Bowmasters deals 1 damage to any target. Then amass Orcs 1.

{T}, Sacrifice a Forest: Add three mana in any combination of {R} and/or {G}.