Youll need to discard an energy afterward, but its not a big deal
The Ring's emblem of temptation relies on players having good creatures that can attack effectively without being killed by blockers too easily, so the effect may be better used by creature-heavy decks that are already adept at pushing damage, or even control decks that can attack with a single, evasive creature to close out the game
The attacks power can be further augmented by Secret Spring, Gardevoir GXs Ability which allows it to accumulate even more Fairy Energy cards, as well as Twilight-GX, its GX Attack which once per game, shuffles 10 discarded cards into the deck, thus allowing additional opportunities for further setup or powering up of Infinite Force
Youll want to stack the triggers so Kitesail gives a creature flying before Sianis ability resolves so you get one extra scry
Minsc & Boo, Timeless Heroes Strong, but balanced in EDH, Minsc & Boo, Timeless Heroes is a rare breed: an amazing beatdown planeswalker