[Sarinpa1]

To add, this fast level gaining is through very intense and tedious training repetition. CM magai magai magai magai click click cm magai magai magai magai click click. And inbetween you also wait for monsters to take their turns. And repeat. And repeat. And you can't really do much inbetween. Occasionaly you break off the stereotype to eat food.

That for a very very long time results in fast level gaining.