When the equipped creature attacks, it gains a +1/+1 counter.

When the equipped creature dies, Abonica's Armory gains X +1/+1 counters, where X is the number of +1/+1 counters the equipped creature had.

When you equip Abonica's Armory to a creature, move all +1/+1 counters from Abonica's Armory to that creature.

Equip {5}