At the beginning of your upkeep, you lose 1 life and create a 1/1 colorless Phyrexian Mite artifact creature token with
toxic 1
(Players dealt combat damage by this creature also get a poison counter.) and "This creature can't block."
Corrupted — As long as an opponent has three or more poison counters, creatures you control with toxic have
lifelink (Damage dealt by the creature also causes its controller to gain that much life.).