level 1
Convection
Changed functionality: Quest Hitting heroes with flame strike increases flamestrike damage by 1% up to 50%
Reward: getting 25% damage bonus decrease flamestrike mana cost by 20 cannot lose stacks below 25%
Reward: getting 50% damage bonus further reduces flamestrike mana cost by 20 can no longer lose stacks
Lose 15 stacks on death
Fel infusion
New Functionality: Quest Hit heroes with empowered abilities to increase spell power by 1% up to 25%
Reward: Decrease verdant spheres cooldown by 1 second
Passive: Kael thas heals for 50% bonus spellpower damage
Mana addict
Additional functionality: Regen globes grant kael thas a shield equal to the amount healed for 3 seconds being healed by a regen globe refreshes the duration can stack indefinitely
level 4
Mana tap
New functionality: Empowered abilities cost 20 less mana casting empowered living bomb on an enemy hero will restore 5% of your maximum. Gain 1% mana for every hero living bomb spreads to.
level 7
Sun Kings fury
New functionality: Heroes affected by living bomb that are stunned by gravity lapse cause a living bomb explosion that doesn’t spread living bomb.
Quest: Detonate 15 living bombs with gravity lapse
Reward: Sun kings fury can now spread living bomb
Verdant spheres: Additional functionality kael thas gains 1.1 attack range while attacks are empowered.
level 10
Pyroblast
additional functionality: now gains movement speed every second every hero hit increases spellpower by 10% for 10 seconds hitting heroes with empowered flamestrike or gravity lapse will refresh the duration.
level 13
Unchanged
level 16
Fury of the sunwell: Changed functionality If flamestrike hits atleast 2 heroes will will explode again 1.5 seconds later with 50% increased radius stacks with verdant spheres bonus.
Ignite: Hitting a hero with flamestrike who already has living bomb will cause living bomb to deal damage 100% faster
Passive: Increase living bombs range by 20% while empowered
Twin Spheres: Changed functionality Gain 2nd charge of verdant spheres, decrease verdant spheres cooldown by 1 second if at least 2 enemy heroes are damaged by empowered abilities
level 20
Presence of mind: New functionality Pyroblast no longer moves faster but gain 1% spellpower per second while pyroblast flies up to 50% shared duration with base effect.