It depends on what order they entered the battlefield
As long as you are in good company and can chill and enjoy the chaos, youll have a great time learning
For everything this spell does, and the fact youre probably getting a one mana discount from your various support pieces, its a home run design
Delve is a sweet mechanic in general, and in spite of how dangerous I feel cards such as Treasure Cruise and Dig Through Time are in Eternal formats, at the very least theyre exciting dangerous cards, not annoying as hell ones like True-Name Nemesis
Eggman might be fun, and Sonic the Hedgehog is well, I dont think we have another legend that cares about flash and haste
These cards are not being reintroduced back into Standard, but they are receiving unique treatment and art that Final Fantasy enjoyers should love