Dorath, King of the Ententia

Haste, Nightstrike, Rampage 3 (When this creature
attacks you may pay {3}, if you do it gains double
strike and afflict 3 until end of turn)
At the beginning of your upkeep choose 1:
•Creatures you control gain Nightstrike until end
of turn
•Creatures you control gain Rampage 1 until end
of turn