Description

Greater Glyph of Scaling Mana Regeneration +0.06mana regen/5 sec. per level (+1.2 at champion level 18) Greater Seal of Scaling Mana Regeneration +0.065mana regen/5 sec. per level (+1.17 at champion level 18)

Why Glyph has lower mana regen per level but has higher mana regen at level 18?