Dragonlord Dromoka

This spell can't be countered.
Flying, lifelink
Your opponents can't cast spells during your turn.

Avacyn, Angel of Hope

Flying, vigilance, indestructible
Other permanents you control have indestructible.

Flying, hexproof
Spells and abilities your opponents control can't cause you to sacrifice permanents.

Creatures you control have hexproof.
Creatures your opponents control lose hexproof and can't have or gain hexproof.