“Angelechy Endgame Problem” should be gaining its effects based on the “number of “Angelechy” Monster Cards in your Spell & Trap Zone”.
However, i have been given the option by Omega, to apply the “3+” effect and activate “Angelechy Verdict” the turn it was set, with only 1 “Angelechy” monster card in my Spel/Trap Zone, while my opponent had 4 such cards.