Having the strength effect # 50-55, 60-65, when you critical hit mobs it does not do any damage, it just punches them back. It's actually way worse than that. It is very random levels where critical hitting doesn't do damage, and where it does, it doesn't work on zombies and monsters with armor, if you noncritical hit them their armor instantly breaks, and levels where noncritical hitting mobs do damage  but not critical hitting, and its just random levels, and at some point, any levels higher all the way to 255 (the limit level) it does not do any damage to mobs, not even pushing them back. It's just completely broken, please fix, it's completely broken in so many random ways.