Whenever a player casts a spell, counter that spell unless that player pays {X}, where X is the number of cards in all graveyards with the same name as the spell.
Choose any number of creatures target player controls. Choose the same number of creatures another target player controls. Those players exchange control of those creatures.
Enchant creature Enchanted creature doesn't untap during its controller's untap step. Enchanted creature has "{1}, Discard a card: Untap this creature."
Choose a card name, then target player mills a card. If a card with the chosen name was milled this way, you draw two cards. Otherwise, you draw a card.