Xerl, Lord of Ice Cream

Flash, split second
Other Douchebag creatures you control have
+1/+1. You may cast Douchebag creatures as
though they had flash.
Whenever Xerl, Lord of Ice Creams attacks,
create a colorless Ice Cream artifact token
with "{t}, Sacrifice this artifact: Add one
mana of any color." Whenever you sacrifice
an Ice Cream, Xerl, Lord of Ice Creams gets
+1/+1 until end of turn.