Beowulf, Butcher of Beasts

Intrepid 5 (Whenever this creature fights another creature, it gets +5/+5 and indestructible until end of turn.)
When Beowulf, Butcher of Beasts destroys a creature in a fight, put a +1/+1 counter on it.
{t}: Beowulf, Butcher of Beasts fights target creature.