SCP 035

When SCP 035 enters the battlefield you may
pay {2}. If you do, search your deck for an SCP
035 Host card and play it for free
Equip {4}: Equipped creature gains +5/+5 and gains First Strike, but each turn you put a -1/-1 counter on it

"You see? You can trust me. Now please, just hurry and open the door!"