this likely is a stupid idea with no applications if it even works that will crash and burn in 20 seconds, so i'll try to keep it short, but it's still an interesting thought experiment.
Questions:
does modus veritas round up or down the number of ticks left on a helix? if it rounds up, this would mean using veritas with an odd number of ticks left would functionally give it another tick, or if used on the last tick, double the remaining damage.
does modus veritas stack with multiple scholars using it on the same mob? IE, if the initial damage was for 100 and 2 sch use veritas, would it reduce the duration to 1/4th the expected duration and quadruple the damage output?
Application:
for this thought experiment, let's assume that the above assumptions hold. if either of the above does not hold, this entire experiment is rendered impossible.
let's also assume we have a large number of sch on hand. (say 10, just for this experiment. this obviously isn't practical, just theory.) assume one scholar stuck a helix effect with ES for 150 (again, this is a number i pulled out of my hat. it's very plausible w/ an MB or something else to push it far higher i'd imagine.) if all sch were to activate veritas at the same time, the next tick (and you can bet the last) would deal 150*2^10=153,600 damage. despite being impractical to pull off, improbable that it will work, and a nightmare to manage, virtually any NM in the game could be 1 shotted with an ES helix/veritas round.
again, a lot of assumptions had to be made on this, and due to the recast on the JA, it's not repeatable enough to be applicable in situations with more than 1 target. still, the astronomical numbers involved in this are alluring, considering the maximum theoretical damage exceeds even the obscenely high HP of AV or ToAU kings. granted, i'm sure AV would have some other trick up his sleeve (when does he not? i'm not deluding myself into think that this will solve the AV problem.) but it might make ToAU kings or vrtra far more palatable to a smaller crowd if it does.