However, outside of flavour, these cards are very different to battles
the best of these Final Fantasy sagas, like Esper Terra or Ifrit, Warden of Inferno, can keep transforming back and forth, but that's not the case here
What set is Inspiring Unicorn from
Apparently the front was removed from a common (real) card with a razor, and then a very high quality printout was pasted on the real back
If you manage to do all four in a single turn, you can also transform Avatar Aang into Aang, Master of Elements a flying creature that reduces spell costs significantly, and lets you transform back for life gain, card draw, counters, and damage
Soulbright Flamekin can potentially turn a bunch of random mana into a whole bunch of red mana, but I think the way Im wanting to configure the manabase well be fine on red already