Is There Any Way For Me To Have An Intel Agility Build And Still Use Assassin

Title, I'm going for 10 defence and the rest into agility and Intel but my main attack (spin attack) does thunder damage, would a water or air damage weapon affect the damage of spin attack or anything like that?

 

Spin attack will do whatever element(s) your weapon does along with the thunder damage. If you don't use thunder the thunder damage is just a free bonus. I use a weapon without thunder damage on my assassin and still do plenty of damage for assassin standards.

 

Depends on your level but Nirvana is a good example of an Intel agility build. I'm currently doing a rainbow build until I get a lot higher leveled (currently around 66)