Toxic 1
(Players dealt combat damage by this creature also get a poison counter.)
When Seething Skitter-Priest enters, creatures you control and creature cards in your hand perpetually gain "When this creature dies, 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.'"