Sinvaders
You can do it lvl 1 if you want to but you will need a very good knowledge of environments, how the mobs behave, at how many meters they will aggro you etc.
This is 1,000% percent correct. The only thing I would add to it is that if you lack that knowledge, especially agro ranges, or are simply reckless/impatient, then even a multi-master will die in short order.
It truly is more a matter of the player's skill and not the character's level.
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