On each attack, the death knight deals 0.25% bonus damage for each mana point he's currently missing and replenishes 1% of his maximum mana. He replenishes 5% of his maximum mana for each unit he kills.
Level Bonus: +0.01% damage per mana point
Will of the Undying
The death knight decreases the base attack damage of all towers in 200 range by 10% and loses 50% of his remaining mana to increase his base damage by 15% for each tower affected for 5 seconds. Only towers that cost at least 1300 gold are affected by this spell.
Level Bonus: +0.2% damage absorbed
Withering Presence
Whenever a unit comes in 900 range of the death knight, it has a 15% chance to have its health regeneration reduced by 50% and to lose 5% of its current health every second for 4 seconds. Units affected by this spell grant 50% less experience and bounty on death.
Level Bonus: +0.4% chance +1% health regen reduction -1% experience and bounty reduction
Specials:
Insatiable Hunger 
Will of the Undying 
Withering Presence 
