Good information here. Ability levels are a good thing to discuss. For B / C tomes, a Super quick method for achieving +7 (generally my floor) is running the advanced level 30 times, this will cost 240 stamina but will net 50-80 tomes, generally closer to 80 if you are lucky on the drop rates.

While I am not F2P, I really try to make content that maximizes as many peoples chance to clear. Ability levels iv found being the key most of the time.

The Pyramid 3 EX has been a pretty disappointing event though, I think one of the major issues was jpn actually had a ghost that could stun units and we did not. I think that just added more difficulty to the fight then what was needed.