Marcy: Very much on brand for how Final Fantasy treats magic scaling, you go from a weak, cheap spell to a larger, expensive spell (that often hits multiple targets)
You can play the card anyway, but you will lose some number of games by taking 8 to the face off the top of your deck
Eric Rills attempt to incorporate Ishkanah, Grafwidow is certainly interesting, but the way this his deck is constructed doesnt lead me to believe that enabling delirium is a consistent or reliable occurrence
Vayne's Treachery also shines here
Last night Steve Warner did another Lorcana rules question and answer session on the official Twitter
His equipment mirrors the Materia and weapon upgrading system of the game while still playing inside MTG rules, and the bonus he gets from allied creatures' equipment reflects the importance of keeping your party well-stocked and ready for battle as well