Loki, Trickster God

If you control a "Thor" or "Odin" card, Loki, Trickster God gets +2/+2 and double strike. If
you own a "Fenrir" card in exile, Loki, Trickster
God gets +1/+0 and removes one shackle counter
from Fenrir, the Shackled Plague.
{1}{u}{u}: Counter target spell.
"You must be truly desperate to come to me for help"