Curse of Kraka Drâk

Whenever you cast a dwarf spell, put a copy of
that spell ont the battlefield.
Whenever a dwarf you control dies, put a 2/2
white and black dwarf creature token onto the battlefield.
Whenever an opponent casts a spell that targets
a dwarf you control, you may discard a card and counter that spell. You lose 2 life.
At the beginning of your end step pay 2 life or sacrifice Curse of Kraka Drak.