Impact Tremors

Whenever a creature you control enters, this enchantment deals 1 damage to each opponent.

Archetype of Imagination

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

Attacking creatures you control have double strike.

Legendary creatures you control get +2/+1 and have ward {1}.
Nonlegendary creatures you control get +1/+1.

Choose a creature type. Return all creatures that aren't of the chosen type to their owners' hands.