Changing Character: Arturia Pendragon to Ahri

[Mark]

I'd say if you're wanting to have 10 seconds of significant to like, the point of finding it hard to stand up, you'd need to make it pretty draining on her as that can be pretty powerful in a fight. Alternatively you could have like a mid-level drain but have the last half of the debuff be a 'recovery' phase where they get back up to regular strength. I know that consuming a soul at the cost of stamina is kinda counter to your canon (I think), but you could RP it as it being like a drug rush thing similar to what you've already said. Like using it too much dopes her up and wipes her out?

Alternatively you could have the debuff be less severe which would allow for it to be less taxing on her while keeping your 10-second time. Like maybe it makes their movements somewhat more sluggish or the heavy dread makes them more likely to miss or something.

For the effects on her, how would you describe the effects on her at the tail end of a large drain? Hobbling yourself wouldn't completely remove the need to spend stamina, but if you're basically out of commission as well for half of the stun length, it would certainly cut it down some.