Most class combinations rely heavily on their respective choice of weapon or to be precise on the corruption effect. While many players over time accumulate several sets of weapons, this can be very problematic for players entering the lategame with a choice that doesn't turn out to be as good as expected.
By implementing testing weapons that are limited to the area of itnal camp, with corruption stats via npc dialog choice or other means, players could test out other class combinations, without the need of investing (ten)thousands of dias into something that might not work at all.
For this purpose it would also be great to have a bigger set of training dummies that resemble the defensive stats of grafu and origin in groups of 1, 3 and 8 respectively to test out singletarget and aoe capabilites.