Overknox, Odric's mentor

Hexproof, deathtouch
At the beginning of each opponent's end of
combat phase, if you weren't dealt combat
damage this turn, that opponent puts a
different counter on this creature from: vigilance,
double strike, flying, trample or indestructible.
With each battle won, he took his spoils not in gold
or weapons, but lessons, to carry on his oath - long
passed its vowed end...