Phyrexia: All Will Be One

Mite Overseer

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

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

First strike
As long as it's your turn, creature tokens you control get +1/+0 and have first strike.
{3}{PW}: Create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block."