I-Saj, Legion of Shadow

Haste
Whenever a creature dies, you may pay 1 life. If
you do, put a legion counter on I-Saj.
When I-Saj attacks, create X 1/1 white, black,
and red Shadow Zombie creature tokens tapped
and attacking, where X is the number of
legion counters on I-Saj. Exile those tokens at the beginning of the next end step.