I often play on Crystal Maiden and personally I don't like het arcane aura's latest buff – "Whenever Crystal Maiden casts a spell, restores some mana to all friendly units within 1200.0 radius". I simply don't feel any impact of this part of the skill.
So I came up with an idea to replace this aura with more useful one – Reduces mana regen of enemies within 1200.0 radius for value1/value2/value3/value4 per second. We already have ability to reduce enemies' lifesteal with Eye of Skadi, Shiva's Guard aura, Drow Ranger's shard, that's what I remember at least. And no mana reduction ability at all? What do you guys think about it?
Source: https://www.reddit.com/r/DotA2/comments/vduf9l/crystal_maidens_arcane_aura_idea/