The text says that if the enemy has Arcane Sickness, Knolan restores mana. This is not super important but it might be nice to have more details. I tested it out and found out it returns 5 mana and 15 overcharge, as seen in the before/after screenshots below.
Hi @tahsoos! Thanks for the feedback. We are going to be adding more detail to Arcane Explosion and Exploit Weakness(Red Monika) specifically.