Echoes of Eternity
From Modern Horizons 3 set
Echoes of Eternity
Kindred Enchantment — Eldrazi
If a triggered ability of a colorless spell you control or another colorless permanent you control triggers, that ability triggers an additional time.
Whenever you cast a colorless spell, copy it. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)