The card can be Special summoned provided there is a Sinfoil Spoils card in either players Graveyard, forcing your opponent to set spell and trap cards before activating with the once-per-turn ability to target one card on either field and destroy them whenever such a card is set on the field while in the Monster Zone
Unstable Amulet I dont think you need to be an energy deck to play Unstable Amulet as long as your strategy gets lots of triggers for casting spells from outside your hand
(I just threw out "world guide" as if it was clear what that is
Thirdly, migrating will destroy any card you have more than four of, for no compensation
Frankly, any big spell you cast like this should be enough to make transforming Hauken worth it, so the real question is what deck wants a big card advantage engine like this
In this image, Meowth is shown watching over a city street at night , from his spot perched on a streetlamp