Basicly for te UB mechanics it is the same as ignite
but you cant compare them because theirs will always be up because its based on when they crit
when the cast goes off you get the dot
the 2nd one increases the dot by adding the tick amount of the first dc to the 2nd
after 10 secs from the first dc the damage falls off and you are left with thw ticks from your 2nd
Dont believe me? Then over a 5 min fight where you cast ~30 DC why isnt UB ticking for 7k by the end? Imagine a longer fight if it worked that way...... 20k UB ticks???