Harrington, Failed Student

Whenever a pest you control deals combat damage to a player, create a copy

At the beginning of your end step create a 1/1 pest creature with infect.

Whenever a pest you control deals combat damage to a player create a copy of it.

{t}, Sacrifice x pests: Create a token named Pest Swarm that has infect, Pest Swarm's power and toughness are equal to the amount of pests sacrificed.