Nerf Cass
A one mage army after archangel is stacked 100% with conq or phase. Please just remove this from the game until you have an actual way to balance this trash can of a mage.
Also
that item becomes almost 200% gold efficient when cass builds one other mana item along with her base mana. This has got to be a joke.
At 328 stacks archangel is 100% gold efficient... Why?
This item has too much for such a low cost. In fact this item should be the most expensive item in the game. Not trinity force.
Dota balance team would be nerfing the shit out of this item because it is even comparable to a bloodthorn which is the most expensive dota 2 item and its for mages.
link to bloodthorn wiki https://dota2.gamepedia.com/Bloodthorn
Go look at those two items and tell me that archangel cost is justified compared to bloodthorns.