Passive to Active

[PsychoMagnataur]

Is there a way to convert a passive ability into an active ability? Such as an activated Barrage or duration effect for Drunken Brawler?

 

[Eusira]

For barrage, you could create like a Fan of Knives with no damage that creates a dummy which shoots arrows. For the Drunken Brawler, you could add item abilities with the Critical and Evasion to the caster, then after a duration, remove them

 

[Panto]

For a duration-based Drunken Brawler, I'd make it a morph skill with a timer. The morphed unit would have whatever special traits you want the unit to gain.

But no, strictly speaking, there's no way to just convert a passive ability to an active one.