The Nightmare that Engulfed Muul (MP02-129 SR) [Masterpiece Collection 02 "Fates Reunited!"]

[Reunited] "Invading Demon of Water" or "Released Terror" - You pay 0 rather than pay the will activation cost of activate abilities of entities you control with "Muul" in their name. [Enter] Reveal X water/darkness Fantasy resonator cards with different names you own from outside the game and keep them revealed until end of game, then search your deck, graveyard and/or hand for an addition with "Muul" in its name and put it into the field. If you searched your deck, shuffle it. [Rest], UB: Put a token copy of target Fantasy resonator card you own revealed outside the game into the field.