Here is a quick clip cut from another video. You get to see one player run through literally 2 or 3 dozen Ophidian monsters like they were a pack of mongbats. At least half are magic casting too, so they don't have to be right next to the player to deal damage. Then you get to watch said monsters be dispatched by a single player casting the same spell 6 times, killing off most of the spawn. That spell is called Wither and only take 14 mana to cast. But that doesn't matter at all because Wraith Form + Wither against that many targets means Mana doesn't matter. It doesn't matter just like having 2 dozen Ophidians attacking you.