What is the differences between balance and bulky offense team?
Balance is a Team based around dealing with most Pokemon in the metagame with relying on a heavy defensive synergy, but it can also contain some breakers; as example Reuniclus with a Calm Mind or Double Dance set can find itself in a balanced oriented teamstyle.
Bulky Offense goes more straightforward in the means of being offensive, and focuses on defensive synergy while still being pretty offensive with a lot of pivoting such as VoltTorn-cores: typical Pokemon you will find there are as example Landorus-T, Dragapult, Slowking, Tapu Koko, Zeraora and other Pokemon such as Heatran, Garchomp, Tapu Lele, as well as Scizor.
The difference in overall between Balance and Bulky Offense is, that Balance is heavily focused on defensive synergy with 1 or 2 breakers, whereas Bulky Offense goes more straight into the offensive aspect with pivoting, and also some hard hitters for the mid- and late-game aspect.