Eldrazi Monument 290/411 (Commander: Modern Horizons 3)

Creatures you control get +1/+1 and have flying and indestructible. At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice this artifact.

NM - $17.70
LP - $14.20
MP - $10.60
HP - $7.10
DMG - $3.60