>>31466129You want 'best' IVs in everything except sp atk (unless you're running a mixed set). Personally, I use:
>Garchomp@groundium zrough skin
jolly
252 spe/252 atk/4 def evs
dragon claw/earthquake/poison jab/protect
Bear in mind that I run a doubles rain team, and garchomp is pretty much only on there to take out electric types and then switch out. Poison jab is to take out tapus if he's forced to, protect is because doubles, earthquake is his best stab and dragon claw because it doesn't lock you into the same move for 2-3 turns or cause confusion like outrage does, although it does deal less damage.
As far as what the best build for garchomp is, that depends on what role you want it to serve, OP