Curse of Exhaustion

Enchant player
Enchanted player can't cast more than one spell each turn.

Mana Vapors

Lands target player controls don't untap during their next untap step.

Exhaustion

Creatures and lands target opponent controls don't untap during their next untap step.

Talion, the Kindly Lord

Flying
As Talion enters, choose a number between 1 and 10.
Whenever an opponent casts a spell with mana value, power, or toughness equal to the chosen number, that player loses 2 life and you draw a card.