Originally Posted by
Aidoru
No, you can only do that once then less for the next one. You can't triple burst if you want to do the strongest burst she can do.
Her assist skill works with 5 counts going down 1 every time you use her abi1 and when it reaches 0, she get's an additional 450% burst damage boost that doesn't factor into burst damage buff cap, so it stacks with her abi1 which can reach the 500% cap in 8 turns. (150% per 2 turns)
The problem with this is if you want her assist skill activated along with her abi1 buff for your first burst, you won't be able to triple burst. Using her burst resets the assist count back to 5 if it's at 0 but doesn't if it's anything else, meaning no zeal effect from abi3 for the 3rd burst if you want to do a fully buffed burst. You can still burst twice but that 2nd burst won't have any burst damage buffs.
I'm not 100% sure on this but I think if you're using a Provisional Forest build, it's probably better to go for the 3 bursts for more total damage (assuming the enemy doesn't die in 1 full burst). If not using PF, doing the single strong burst and then a regular one after might be better.