The Dark Lord's Trinket

Equip {1}
Level Up {p/c} ({p/c}: Put a level counter on this. Level up only as a sorcery.)
Level 0-2: Equipped creatures gets +1/+1 and Persist.
Level 3-5: Equipped creature gets +2/+2, Persist and Hexproof.
Level 5+: Equipped creature gets +3/+3, Persist, Hexproof, Indestructible and Trample.