The test that concludes the final arc of Fireren wraps up a lengthy period of challenges, with a simple conversation. But this basic form of test for the First Class Mage exam might be the ultimate measure, testing character and revealing more than the two that came before. This is why Frieren's final test was the most insightful out of all three.

Timestamps
00:00 A Vibe Check
02:03 What Makes a First Class Mage
04:56 A Test of Character
07:43 Age of Humans
09:22 Power of Connection