If you still kaisa's ult, your auto-attacks, as well as any cc, will put stacks of plasma on the target allowing you to ult to them, however, if you steal Darius' ult, you do not get the ability to stack bleed stacks, making the ability do practically zero damage.
Darius ult It's supposed to act as if the opponent you hit already has max stacks, kai sa ult some one NEEDS to have stacks before you can use it similar to kayn ult
I'm pretttttty certain it acts as though.you have zero stacks when stealing dar ult. It would actually be busted if he he had fully stacked dar ult every time he stole from Darius.
