Mardu Ascendancy

玛尔都霸权 (Mardu Ascendancy) (zhs)

Enchantment (CMC 3)
Whenever a nontoken creature you control attacks, create a 1/1 red Goblin creature token that's tapped and attacking.
Sacrifice Mardu Ascendancy: Creatures you control get +0/+3 until end of turn.