Bane of Telemusog

Equip: {6}
Equipped creature is legendary and gets +1/+2
for each legendary permanent you control.
Augment 3 - As long Bane of Telemusog is equipped to a creature with 3 or more +1/+1 counters on it or has gotten +3/+3 or more this turn, whenever equipped creature attacks, destroy target nonland permanent.