Ice Hunter's Demon Boots

Mysticism: Getting a kill or assist on an enemy Minion will restore 4% Mana. (An assist occurs when a Minion dies within 2s after taking damage from the hero.)
Hunter: After dealing damage to a Creep, deal 40(+3*Hero Level) + (+0.01 Total HP) True Damage to the target over 3s (damage is increased by 100% for non-Marksmen heroes).