When you cast a TDFC, you cast it as the front face, and it enters the battlefield with its front face up. Then each TDFC has further instructions on how you can transform it to its backside.Take Kefka, Court Mage: You spend , and you get to transform it into Kefka, Ruler of Ruin Or Ultimecia, Time Sorceress: Pay and exile eight cards from your graveyard, and she turns into Ultimecia, Omnipotent, giving you a whole extra turn as cherry on top
Secondly, most of the FF bosses don't belong in the same deck
(2025-11-17) The subtype Shapeshifter that appears on the type line is mostly there to reinforce the flavor
X DARK Level 3 [ BeastEffect ] ATK 500 DEF 2000 You can reveal this card in your hand
Wizards of Thay is pretty great, but even better might be Font of Magic