Showing an example from KTERA where if you use Warp Barrier during Mana Boost, the buff will be negated until Warp Barrier’s effect is completely over.
Hailstorm crits for 5177 damage by itself.
While Mana Boost is active, Hailstorm’s receives a 20% damage increase. 5177 + 20% = 6212 rounding down.
Watch as I activate Warp Barrier during Mana Boost where you’ll start to see the 5177 damage for a brief moment and then when Warp Barrier is over, Mana Boost buff starts working again.
This will also affect Meteor and Arcane Pulse from their additional effects too. A small price to pay for changing Warp Barrier back to using skills again.