Ullr, the AllFathers General

Vigilance, first strike, menace
Whenever a creature enters the battlefield under
your control, put a +1/+1 counter on Ullr.
Remove a +1/+1 counter from Ullr: Another
target creature gains indestructible until end of
turn.
"Odin proclaims to see all, yet he does not see the
writing on the wall" - Ullr, the AllFathers General