Like most Magic: The Gathering cards, the value of Summon: Bahamut depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Final Fantasy)
Trading card and game firm Upper Deck this summer sued Ravensburger for what it blasted in a release as a stolen game, alleging essentially that Miller, while on a work for hire contract with Upper Deck, developed the game that would become Lorcana. The breach of contract suit contends that an Upper Deck game bears remarkable, uncanny similarities to Lorcana. Miller, the co-designer of Lorcana with Steve Warner, declined to address the lawsuit
At the beginning of combat on your turn, attach any number of Equipment you control to target creature you control
A card like Freed from the Real or Pemmin's Aura will allow you to infinitely tap and untap Yuna, meaning the next creature you cast can enter with as many +1/+1 counters as you want