Deadmau5, Electro Savant

Undying, Deathtouch, Haste,
Instants & Sorceries you control have flashback.
Whenever Deadmau5 enters the battlefield
or attacks you choose one of the following-
•Draw a card, sacrifice a artifact or creature.
•Create 2 treasures
•Deal x damage to any target where x is the
number of artifacts you control.