Will the new Lost Champter item

Will "Lost Chapter" build into multiple items or just into ?

The item seems to be good (and probably mandatory for every mage that wants to deal damage early on) and would be a waste that it forces into a single build path.

Lost Chapter (NEW)

Recipe: Sapphire Crystal + Amplifying Tome + 115 Gold = 900 Total Gold
25 Ability Power
250 Mana
Unique Passive: Upon levelling up, restores 20% of your maximum mana over 3 seconds.