Playing Hades, quick strategy-question.

Board 8

Is there any purpose for Ambrosia beyond Titan's Blood and Companions ? I almost never go for Call-powers and the latter of those seems similar from what I looked up. I just want to upgrade the heck out of my spear and am trying to see if I should wait on that or not.

Did worse on my second Hades-fight , but also I'm getting that two-on-one match down much better now. Kill the minotaur first, full-stop. Beat them with the spear two or three times and just beat them with the sword for my first time!

Dark mirror powers are almost completely maxed out now besides rerolling the items.
O P E R A T I O N O U S T : Nominate SHEIK!
https://i.imgur.com/OpudFxm.jpg