Parallel Canon

Create a 2/2 Parallel Canon creature token with
When this creature is destroyed, create 2 2/2
Parallel Canon creature tokens with When this creature is destroyed, if it is the only one on the battlefield, create 4 2/2 Parallel Canon creature
tokens.
The opponent cannot win while there is a Parallel
Canon creature token on the battlefield.
After you play this card, Exile it.