Finisher node in champions clash doesnt work

Wased5678

It says special damage goes up by 2.5% for each hit on the combo meter, but my sp damage never goes up. No matter how many hits I have. Am I reading it wrong?

Wased5678

@Kabam Miike @Kabam Lyra @Kabam Zibiit @Kabam Wolf @Kabam Vydious anyone