Level 64 gave Tatia “Seal of Vengeance”. Experimentation shows that it’s a whole new critter in the seals.
Tatia puts up Seal of Vengeance.
Tatia starts hitting baddie.
Baddie gets a debuff (can’t remember the name at the moment) that causes 120 damage over 12 seconds (in 3 second chunks ie, 30 damage every 3 seconds). The debuff stacks up to 5 times (so then it’s 150 damage every 3 seconds).
If you Judge Seal of Vengeance it hits the baddie for 120 x number of debuffs (ie a max of 600 damage). Judgeing Vengeance does not make the stack go away.
The debuff can exist side-by-side with a judged seal. So you can have Judgment of Wisdom on the baddie and a stack of Vengeance debuffs.
This still requires more thinking.