Spellstone
Confirmed in gameFrom the beta client, and the game shows the same numbers. They can still change before release. Why Blizzard hides items
Common, Armor, Miscellaneous, item level 36, item 5522. All items
Changed from Classic: the tooltips differ on the highlighted lines.
Classic Era 1.15.9.69722
Spellstone
Binds when picked up
Unique
Held In Off-hand
Requires Level 31
Use: Removes all magic effects from the caster and will absorb 400 magic damage for 1 min.
Equip: Improves your chance to get a critical strike with spells by 1%.
Forever beta 1.60.1.70338
Spellstone
Binds when picked up
Unique
Use: Imbues your weapon with Shadow, increasing your spell haste by 1% and the damage done by your Shadow spells by up to 14.
Read from the game clients' item tables through wago.tools. Some Forever items are not in those tables: Blizzard's server sends them to the game the first time it meets one, and we read the ones our game has received from its cache. The Forever client's stat amounts, armor and weapon damage are computed from its item level budgets the way the game computes them. Names, icons and item data © Blizzard Entertainment.