Eldrazi Monument [SLD - 603] F-20 Rules Text Contains: Whenever one

Rules Text Contains: Whenever one or more creatures you control fight or become blocked

Rules Text Contains: T: Choose target artifact a player controls and target artifact card in that player's graveyard

Rules Text Contains: If you would create one or more tokens

we have our Science

Sacrifice Arid Mesa: Search your library for a Mountain or Plains card and put it onto the battlefield

Eldrazi Monument [SLD - 603] F-20 Rules Text Contains: Whenever oneRarity: M #: 603 Creature Type or Sub Type: Artifact Rules Text Contains: Blueprint Cards 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 Eldrazi Monument.