SCP-035

Equip {4}
This artifact can be equipped to any creature.
Gain control of equipped creature. At the
beginning of your end step, add a
corrosion counter to equipped creature. Once equipped creature has 5 corrosion counters on it, sacrifice it. If SCP-035 would be removed before equipped creature has 5 corrosion counters on it, remove all corrosion counters from
equipped creature and return it under its owners control.