Whenever a player casts a spell, that player discards a card.
"Do not presume to speak for yourself." —Gix, to Xantcha
Illustrated by Pete Venters · The List · #USG-143
There are no rulings for Oppression.
Whenever a player casts a spell, counter it unless that player pays .
Whenever a player casts a spell, that player discards X cards, where X is the number of cards in all graveyards with the same name as that spell.
Whenever an opponent discards a card, that player loses 2 life.
Whenever a permanent is returned to a player's hand, that player discards a card.
Whenever a Goblin deals combat damage to a player, that player discards a card.
Flying
Whenever a player casts a nonblack spell, that player loses 1 life.