Poison Spray

Poison spray does not target artifact &/or
black creatures.
Put a -1/-1 counter on every creature in play
you do not control.
The following creature type(s) you control gain
trample until end of turn: demon, devil, fish,
frog, fungus, gorgon, hag, mutant, naga, ooze,
scorpion, serpent, snake, spider, &/or wyvern.