It seems that there is some double dipping when the damage from Soothsayer’s jump to another enemy. It is an old bug, and been fixed, but come back in recent version.
Part of the reason why it can deal huge damage I think is because when we execute an enemy, it will trigger the Soothsayer’s aspect. it may treat you deal the damage that equal the remaining life of the enemy.
Expecially that we have Idol From Below season jewel this season, and I guess that because the jewel guardians have lots of life, so when we execute them, and if the damage from Soothsayer’s jump to the boss, it can deal huge damage to the boss.
It is a very bad mechanism, it will let pit pushing depends on who the luckiest that can make the most of the executed guardians damage jump to the boss from Soothsayer’s.
I hope it will be fixed. and you can get the video from the leaderboard of helltides.
For the latest 124 pit pushing video, you can see that it is really bugged, at the end of the video the Soothsayer’s kill the boss instantly.