[Detective100]

Describe the Issue: The spell "Impact Cannon" from the Explosion tree costs double the mana the tooltip says.
The tooltip:
Impact Cannon
An intense, instantaneous series of explosions that implode in a beam.
Spell damage: 12
Mana cost: 15
Cooldown: 30s


The mana cost as written is 15, but it is effectively 30 in practice.

How to reproduce: Use Impact Cannon and quickly click on your mana bar to see how much mana you lost. You should have either -30 your full mana if you clicked hard enough (for example, 120/150), or -25 if it already started to regenerate by the moment you clicked.