Cryptex 422 (Murders at Karlov Manor)

{T}, Collect evidence 3: Add one mana of any color. Put an unlock counter on this artifact. (To collect evidence 3, exile cards with total mana value 3 or greater from your graveyard.) Sacrifice this artifact: Surveil 3, then draw three cards. Activate only if this artifact has five or more unlock counters on it.

NM - $1.50
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50