Omicron Ability Update: Princess Leia

What happens when it is x% for all allies to whatever. Is that one RNG roll for all or none or RNG rolls independently for each.

If it said x% for each or each ally has x% then clear. To me this reads like all or none as it is "she has....to grant" so is single roll.

Also, I assume Leia second and third attacks also generate this chance? This would mitigate the above somewhat.

Guess with Ackbar works well if she is one of weakest.