I would choose Chandelure
ability: flame body
item: zoom lens (anything that boosts accuracy)/quick claw (Chandelure needs more speed)
moveset
-Inferno: high power, STAB, always burns (hex) , and accuracy boost from item
-Hex: STAB, works with ability and Inferno
-Energy Ball: covers grass weakness, and may lower Special Defence
-Pain Split: No explanation needed/Telekenisis: Inferno will hit and boost hex's power
with telekinesis you do not need zoom lens and can use the quick claw or something else