
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.)
Echoes of Eternity has 4 printings, first in Modern Horizons 3 (2024). EDHREC ranks it #1,449 among Commander cards. It appears most in Ulalek, Fused Atrocity decks (23,187 on EDHREC). It has 13 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.