In Ether Saga you can transform to loads of creatures... flying beasts,ground beasts, random humanoids.. bla bla.. you name it, they have it..
Ether Saga sounds perfect for you if you like transforming..
(There's like a transform card that drops from all kinds of creatures)
(Note that a creature only drops its own transform card)
(They rarely drop, good thing, is that some of the cards have infinite turns
)