{R} Threefold Signal (Promo Pack) [Streets of New Capenna Commander Promos][PP NCC 093]

When Threefold Signal enters the battlefield, scry 3.
Each spell you cast that's exactly three colors has replicate {3}. (When you cast it, copy it for each time you paid its replicate cost. You may choose new targets for the copies. A copy of a permanent spell becomes a token.)