It's possible to play and enjoy Disney Lorcana without ever paying any mind to card rarity, but understanding it can be really helpful for players trying to get specific cards for their collection or for a specific deck
If an Adventure spell leaves the stack in any way other than resolving (most likely by being countered or by failing to resolve because its targets have all become illegal), that card won't be exiled and the spell's controller won't be able to play that card from exile later
As long as there's still spots for that clan at that event, we can definitely make that happen
Choco, Seeker of Paradise I imagine Choco, Seeker of Paradise will eke out Kastral, the Windcrested as EDHs best bird commander, if only because adding green to the mix makes any casual EDH deck better
If you can shift her in early, you can even the playing field for going after your opponent
Amber brings healing and supportive characters that allow you to recover from early aggression, while Amethyst adds tricky control tools that can block, bounce, or stall your opponents biggest threats