Dredge, Erlingr's Chosen

When Dredge enters the battlefield create a 1/1
green Raven creature token with flying.
Whenever Dredge attacks or blocks you may
choose one:
* Create a 2/2 green wolf creature token
* Other attacking or blocking creatures gain
+1/+1 until end of term.
* Other attacking or blocking creatures get -1/-1
until end of turn.
* Target creature gains indestructible until
end of turn.