Oinx, The Instant Death

Flash, Doublestrike.
Oinx, The Instant Death attacks each turn if
able.
If Oinx, The Instant Death would be blocked by
one creature or more, put a poison counter on
each creature that is blocking Oinx, The Instant
Death. At the beggining of the next upkeep,
destroy all creatures with poison counter on them.
{4}: Remove a poison counter from target
creature. Any player may activate this ability.