Saheeli's Lattice

Artifact

When this artifact enters, you may discard a card. If you do, draw two cards.
Craft with one or more Dinosaurs (, Exile this artifact, Exile one or more Dinosaurs you control and/or Dinosaur cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

Mastercraft Raptor

Artifact Creature — Dinosaur

Mastercraft Raptor's power is equal to the total power of the exiled cards used to craft it.*/4