It was Anarchy Online, its free 3d mmorg. But it wasnt that easy, some of those low level twinks cost more than others made in entire gameplay
I had two, both was able to kill solo end bosses frome dungeons (there was level cap). These bosses was usually killing entire teams in 10 seconds
It was kinda hilarious when some team was incoming to hit boss, and they met me there, while i was tanking boss with "magician" profession, and whole team was trying to outdamage me to take loot
And if someone had pvp flag
On lower level i was just standing with pvp flag and pets was eating everyone who was trying to kill me