Gameplay Video (Level 504 Mythic 3):-
This is the best farming Build I've established so far.
IMHO, a good farmer must have the following aspects:-
1) Max Gold Find;
2) Max Item Find;
3) Max Luck;
4) Crystalline Set Affix;
5) Eternal Set Affix;
6) Nadroji Set Affix; and most importantly
7) Able to still farm at Level 500 Mythic 3 Difficulty for Highest Crystal Rarity.
Together with the Perks of "Treasured" and "Fortunate", on average, I'm able to get either one (1) Eternal or one (1) Crystal Legend in every rwo maps with "Pack Size" Affix.
*IMHO, the best way to farm high level crystals is to find and convert Eternals and Crystal Legends.
The current Build is also able to take down a Legendary Enemy Spawn in 5 seconds at Level 504 Mythic 3 Difficulty as shown in the Gameplay Video at 4:38.
**This Build is purely for farming. It is not intended for PvP or climbing.
1) Why Explosive?
It is the bread and butter of this Build. The Cap for Explosive is 2000%. Since it is not considered as a "proc", it can be triggered frequently with the High Attack Speed of Flintlock. If targeted at a group, the Explosion can cause chain explosions as well.
2) Can I use a Bow for this Build?
In order to get both Eternal and Crystalline Affix, you can either use a Crystalline Dagger with an Eternal Hat, or an Eternal Flintlock with a Crystalline Hat. Needless to say, Flintlock would be the better option if we were to utilize the Explosive Affix.
3) Why not other procs?
Other "procs" are triggered on a "per second" basis. Explosive is NOT a "proc".
4) Is there anything I can do to increase the damage?
My guess is, instead of using the mythic "skilled", "brutal" MAY give an overall higher damage output. I've not tried it though.