Should this excellent Cascade, Cascade happen, the game will basically be over, in an instant
Losing the ability during the game doesn't cause either to cease to be your commander
Besides, its better placed in a more controlling deck that can really take advantage of the selection provided by its ability, filling its graveyard with removal spells (instead of spending those turns casting creatures)
When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1
Though later Universes Beyond drops, like SpongeBob SquarePants, did take longer to sell out, the hype for Final Fantasy is on a whole other magnitude
After all, it is the big, bad, extra-dimensional terror causing all the problems in the show