Tier 1 (Hero Level 1)
Your Mana regeneration is increased by 100% while below 25% Mana.
Patch changes[]
(Patch February 6, 2018) Note: The Astral Presence icon is no longer missing its mouseover tooltip.
(Patch February 17, 2016) Note: Mana Regeneration bonus now only triggers while below 25% Mana, rather than 50%.