Innu Oji, Cursed Clan Exile

Partner with Unthala, Outercity Witch.
Haste
Sacrifice X permanents: Monstrosity X
As long as Innu Oji, Cursed Clan Exile is
monstrous, it has fear and "{b/r}{b/r}: Remove a +1/+1 counter from Innu Oji, Cursed Clan Exile. Destroy target non-artifact creature"