Master of the Swarm

At the beginning of your combat step, create X 1/1 Insect creature tokens with flying tapped and attacking where X is Master of the Swarm's toughness. Exile those tokens tokens at the end of combat if they have toughness less than 2.
{t}: Put a +1/+1 counter on target Insect you control.
"Buzz, buzz. Buzz."