I realized I wasn’t finding the damage effect because I needed to be using the “Void-Multi (Mod)” dependency.
They separated the damage effect into an upgrade called "Sundering Impact". It's listed as a validator under “Zealot - Charging Damage Secondary” Effect that effect is the 8 damage under the effect “Zealot - Charge Apply Buff” effect which shows a lot more than just selecting the ability.
I had a bit of difficulty trying to replicate the ability how it was, so I just duplicated Alarak’s Deadly Charge instead, and it’s working perfectly now.
The only thing left is I’m trying to find the model file for the Zealot’s blue trail when he charges. Does anyone happen to know what actor or events are used for the Zealot’s charge blue model trail?
I checked the events of the Zealot’s actor, and I found the “Behavior. Charging On” -> “Model Sudden Motion Start” event, but it didn’t seem to effect the blue trail.
I also looked around for an actor or model that created the blue trail, but couldn’t seem to find either.
Update: I found that the blue zealot charge animation is a spell. And there is an actor called "Charging Anim" to enact the spell.
In order for it to work for the new ability, I made an event in the unit's actor itself.
Go to the unit’s actor -> Events + -> Create new event -> Behavior -> [The behavior of the ability]“Alarak- Deadly Charging Copy” -> Create -> Animation Play -> Name: Spell -> Animation Properties: Spell.