Titanstone Knuckles

Remnant of Divinity.
Whenever equipped creature attacks, it gets
+X/-X until end of turn, where X is it’s power.
When there are three or more progress counters
on Titanstone Knuckles, it gains 'Equipped
creature has trample, reach, and {t}: Target
creature loses indestructible until end of turn'
Equip {2}