Martlina & Doggust

Whenever Martlina & Doggust attack, put a +1/+1 counter on them.
{t}, Remove one or more +1/+1 counters
from Martlina & Doggust: Destroy target
artifact or enchantment with converted
mana cost less than or equal to the number
of +1/+1 counters removed this way.