Give assassin a mana drain!!!

[Announcement]

Assassin's buffs consumes a great amount of mana and they only have 1 skill to recover mana (Slayer of Darkness), which isn't enough to fill the mana bar. Other physical classes have their mana drain skills example gladiator, ranger, vandal and im not sure if templar also have. so why not give assassins a mana drain too?

if you're an assassin please comment how you deal with this.

my mana pots consumption takes about 300 pcs/week if grinding

[The Secret Cow Level]

Gunners also don't have any mana drain skill while using cannons. While they can switch to pistols, auto hunting can't switch weapon which is this same problem when autoing Garden of Growth.