[2021] How "on hit" effects work

One skill may trigger multiple instances of “on melee hit” if it hits multiple times. Most hits can only hit each target 1 time so it would require multiple targets. (I said “Most” because I’m not sure if there is an exception or not. I can’t think of any but we’ve got a lot of stuff going on that I sometimes forget about)

Detonate Ground is a melee hit. If a node on a skill tree references it, you should be able to hold alt and get the skill tooltip for the triggered ability to show up.