Um...
I made it to level 50, and the Atma Weapon never really became that cool for me. About one point does it start to be all badass with the 9999s and such?
Because it is a very powerful weapon (If I recall, it does around 3000 dmg or something. But still, maybe not even that), but it doesn't compare with weapons that keep doing 2000 damage when you're at half health and don't need to waste a turn healing yourself.