Assassin

Permanent evasion instead of the Ranger's opening burst, plus the highest proc rate in the game on Electro. An Assassin is not trying to out-trade anyone - it is trying to make a third of the incoming attacks miss and a third of the enemy's turns not happen. Sulong turns night fights into a different class entirely, and "night" is a fixed window: 20:00 to 06:00 in your character's own timezone, so an Assassin played in the evening is a measurably stronger character than the same one played at noon.

Shadow +10% dodge chance, permanently active.

Agility, and it is not close: damage, dodge and health from one stat, with the game's highest dodge ceiling to spend it against. Luck second because Sulong scales off it. Endurance last and grudgingly.

Treating dodge as reliable. It is a coin flip weighted in your favour, not a defence, and the variance is brutal in a single decisive fight. Assassins that lose usually lost to two unlucky rounds in a row, and the answer is enough health to survive them, not more evasion.