Font of Power Omen Sceptre has the following Stats:

Spirit: 100

Font of Power Omen Sceptre features the following Modifiers:

(30-50)% increased Spirit
When a Party Member in your Presence cast a Spell you Sacrifice 20% of Mana and they Leech that Mana
(20-30)% increased Mana Regeneration Rate
+(40-60) to maximum Mana