I don’t always Ascend, but when I do…
… it’s during the last 2 seconds of a trash pull.
Why does it seem like Ascension only happens when whatever you’re fighting is <10% of its life? I’m pretty sure 9 out of 10 times it actually happens, it’s either in the last 10% of a mob’s life, or worse, when I pop a heal on myself after a battle to use a maelstrom weapon charge up before it wears off.