From what I've seen as a meister so far - we toss out some pretty frequent critical hits. Boosting your luck and stamina would be top priority. Try to skip on magic and strength is mostly useless (as in enchants, or heck, even that +30% strength buff). Go down the critical branch to obtain that defensive skill (10% damage reduction) and passive HP boost (30% HP).
Adding to this: A pet that boosts your damage somehow would be the best. Tengu, Gumiho or any of the Pandas would work. You could also snag a Brownie for 20m-30m before they begin to inflate. 5% target defense reduction is okay, and it's even better when you stack machine armor buffs/ravage/bong glasses with it (that's 30% TDR in total).