Shaman · Restoration · tier 3 · from level 20
Water Shield
Water Shield
Rank 1/1
The caster is surrounded by 3 globes of water. When a spell, melee, or ranged attack hits the caster or when one of the caster's healing spells gets a critical result, 2% of maximum mana is restored to the caster, expending one water globe. Only one globe will activate every few seconds. Lasts 10 min. Only one Elemental Shield can be active on the Shaman at any one time.
Doesn't change the damage or healing of any Shaman spell.
Averages, counting crits and misses, for a level 60 Shaman with a typical weapon and no other gear or buffs, against a target your level. Worked out from the game's own data, the same way as the Foresight addon.