Summon the Worthy

If you cast this spell from your hand, put a
legendary creature you own with converted mana
cost X or less from outside the game onto the battlefield under your control.
"On Amonkhet only the best of the best attain the
"worthy dead" and have the honor of being personally killed by Hazoret after completing the 5th trial. Some
of these "worthy" exist in between the Afterlife and the
real world."-Vizier of Knowledge