I have seen quite few trying to scourge Jac unsuccessfully in all phases of the game. Scourge is slower skill than firestorm and Jac is usualy in corners behind 2 rows of mech... Btw Rufio can also distrupt his firestorm with leap. But these are all situational solutions which will only slow him down... I recently bought him (30d old ream) and no f2p player has been near to beating me. Not to mention some players got 2x arrow trinkets per 18 might from event. I am sure that once you meet lvl 50 Jac nothing will help unless you have more paid heroes maxed than the enemy. Sadly game went from troops 》heroes to heroes 》troops.
"They don’t sit on benches while eating but squat like Europeans do when they relieve themselves out in the leafy woods."