{R} Mite Overseer [Phyrexia: All Will Be One][ONE 404]

First strike
During your turn, creature tokens you control get +1/+0 and have first strike.
{3}: Create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This token can't block." (Players dealt combat damage by it also get a poison counter. can be paid with either or 2 life.)