This is In-Game. It knows Mach Punch, Stone Edge, Giga Drain, ???, and has the ability Technician.
Dynamic Punch, Sky Uppercut, and Bulk Up are always great options. I would defiantly replace Giga Drain with Bulk Up and get Sky Uppercut or Dynamic Punch, since Breloom is quite the brawler.
As Veteran said Bulk up instead of Giga Drain.
As a fourth move I would do Bullet Seed, with the bulk up you will wreck havoc everytime. Then Mach Punch to finish them off.