Early
Core
The most important Lion item. If you aren`t going for a full utility, you can delay it, but mobility is still essential for your initiation.
Even while you don`t really need much mana, this addition to your mana pool is pretty useful, while also providing significant range increase.
Situational Early
Potential self-save against physical damage
Utility
Additional armor, mana pool, attack speed slow
Potential save against physical damage
Additional armor and ability to purge debuffs from allies
Natural medallion upgrade. Good against autoattacking cores.
Lategame
It`s good for utility build due to its stats, cooldown reduction and damage increase. Altho, we aren`t really focused on this aspect of Lion.