6.18 and after
- This ability got reworked into the current in the 6.54 gameplay patch.
- Applies the mana loss first, and then the damage.
- The damage and the mana loss are fully independent from each other.
- Also damages enemies without a mana pool.
- Fully affects invisible units, but not hidden units. Invulnerable units lose mana, but are not damaged.
- The visual effects and the sound during the effect delay are visible and audible to everyone.