La saga d'Urza

Okk can't attack unless a creature with greater power also attacks. Okk can't block unless a creature with greater power also blocks.

At the beginning of your upkeep, you may put a verse counter on Rumbling Crescendo. {R}, Sacrifice Rumbling Crescendo: Destroy up to X target lands...

Whenever Electryte deals combat damage to defending player, it deals damage equal to its power to each blocking creature.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) {T}: Add {B}{B}{B}{B}. Target opponent gains control of Wi...

At the beginning of each player's end step, Antagonism deals 2 damage to that player unless one of their opponents was dealt damage this turn.

Enchant creature Enchanted creature gets +2/+2 and has flying. Whenever a creature dealt damage by enchanted creature this turn dies, put a +1/+1 c...

At the beginning of your upkeep, you may put a verse counter on Vile Requiem. {1}{B}, Sacrifice Vile Requiem: Destroy up to X target nonblack creat...

At the beginning of your upkeep, if you control another nonland permanent, sacrifice Reclusive Wight.

You may choose not to untap Mana Leech during your untap step. {T}: Tap target land. It doesn't untap during its controller's untap step for as lon...

All creatures are black.

{T}: Elite Archers deals 3 damage to target attacking or blocking creature.

At the beginning of your upkeep, you may put a verse counter on Discordant Dirge. {B}, Sacrifice Discordant Dirge: Look at target opponent's hand a...

Flying, haste

Whenever a green creature dies, its controller discards a card.