Quote Originally Posted by Curisu View Post
But to need 1k medals to upgrade haste on one single part is just way to much....
You get 25 medals per run and need thousands to get gear that helps you in the instance with more haste is just not worth the time.
You have a chance of getting the upgrade items after the second boss if you save enough prisoners. The high medal cost is so that the items are rare if you're not putting in effort to do good Castrum runs and aren't just flooded on the market board.

Quote Originally Posted by Cilia View Post
Finished my weapon so I started getting into it.

Eureka 2.0 as expected. Being teleported to CEs is nice. Leveling is fast enough. Uhh... Bozjan Clusters don't seem to drop very often; I only got like 1 in 3 hours.
What Ancient said is right, doing it in a party means you get crazy good amounts of clusters. Also you need to know what mobs you should be aiming for.