Greater Shai-Hulud

Convoke (Your creatures can help cast this
spell. Each creature you tap while casting this spell pays for 1 or one mana of that creature's color.)

Indestructible

Arrakis teaches the attitude of the knife--chopping
off what's incomplete and saying: "Now, it's compete because it's ended here."
-from "Collected Sayings of Muad'Dib" by the Princess Irulan