Truthfully we have this kind of effect on Sarkhan, Wanderer to Shiv, and that doesnt see play in Historic
action cards and action/song cards
These are all being reprinted with awesome art from throughout Final Fantasy history: Tymna the WeaverTymna the Weaver Kraum, Ludevic's OpusKraum, Ludevic's Opus Thrasios, Triton HeroThrasios, Triton Hero Winota, Joiner of ForcesWinota, Joiner of Forces Najeela, the Blade-BlossomNajeela, the Blade-Blossom Dark RitualDark Ritual Kinnan, Bonder ProdigyKinnan, Bonder Prodigy Bolas's CitadelBolas's Citadel Godo, Bandit WarlordGodo, Bandit Warlord Rhystic StudyRhystic Study Yuriko, the Tiger's ShadowYuriko, the Tiger's Shadow And plenty more
Theres a reason this Mox isnt legal in any format other than Vintage, where it can be used only as a one-of
A bit unexciting in a vacuum, but a legitimate black wincon if you play Cabal Coffers and other big black mana-producers