Cryptex
Cryptex
{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.)\nSacrifice this artifact: Surveil 3, then draw three cards. Activate only if this artifact has five or more unlock counters on it.
Artifacts Matter Card Draw Collect evidence Counters Matter Mill Surveil Topdeck Unconditional Draw Unlock Counters