Description says “restore 20 health to a merc, their next ability is 5 faster.”
I had mayev, ysera, nemsy on board. I casted oracle on ysera, then my erupting fungus was casted at 0 speed and imprison on 5.
Also the enemy tavish dealt 5 damage with his aimed shot instead of 10, although i didn’t do anything the next turn. Seems like Imprison ability saves his “damaged” status for the next turn. Or his ability is broken.
Also there is no mistake here, i repeated this sequence of events several times during one match.