Thanks for reporting this, MeToLee. Neocore is aware of that bug, and the fix is straightforward (I've heard they've already put it into place internally). Someone updated the skill but forgot to update the property that describes which substring (the "{aoe_damage_bonus,100}" you're seeing) to replace with the item's stats. It still points to the old value (just "{damage}").

That looks like it is supposed to look like after the new patch yes. Doesn´t matter what item it is. It is on everyone item now. It is the new trend from Neocore these days for AoE Skills.