Board Thread:Questions and Answers/@comment-27201785-20151117191125/@comment-124.104.116.166-20151118101804

Yep, version 2 means second version of CC. V2 has a lot of improvements like increases rates to pull 5-star cards, Challenge recruit, new maps and enemies and unit buffs (like projectiles now delay walking units except knights were as before, they don't 'flnch' while knights do). More features and improvements to come later.

F2P means Free to Play. Not spending money on this game and all resources used are provided by the game without any monetary charges.

10+1 recruit is only available if you have no premium tickets. If you have premium tickets, you have to spend them to see 10+1 recruit (if it has). This goes for both event and tavern gachas.

Prysma can be used for various things like the ones you mentioned. Here are more: allows you to refill your AP completely (similar to stamina fruits), allows you to refill your Soul completely during demon raids (similar to Vigor fruits), allows you to revive in battle if you were wiped out or enemy breaches your defense line if you have no revive fruit, heal in gauntlet, recruit characters in event and tavern gachas. Recruiting is the most common way to use prysma since some powerful characters can only be obtained by spending prysmas (or premium tickets) in gachas.

The party cost limit is level based. I don't believe it can be increased besides leveling. I'm not sure if upcoming contents will give you stuff to do this but I doubt it.