Cost line should read:0 : Rise[Ability Here]Add that comma after "attack." You are creating two individual fragments as opposed to a list...Aside from my grammatical issues, it SHOULD be fine.
No, because then it reads: Gain airborne. +2 attack and momentum. Fall. The second comma tells that it is a list.But this grammatical digression is really left to you on how you wish to pursue it. It's just a personal peeve.
When does the Fall effect take place?