Hay-lae-liel, Demonslayer

Wither (This creature deals damage to creatures in
the form of -1/-1 counters.)
Whenever Hay-lae-liel becomes blocked, if it was blocked by a Demon, it gains deathtouch and
loses wither until end of turn.
{1}{g}{g}{w},{t}: Create a 2/2 green/white Wolf
creature token, then populate (Create a token
that's a copy of a creature token you control.)
{3}{g/w}{g/w}{g/w}: Transform Hay-lae-liel, Demonslayer.