Calling this shit right now, so I can say I invented it if it becomes popular.
Tapu Bulu stall is going to be one of the new prominent stall arch-types in generation seven. Grassy terrain does a couple things, it halves ground damage, it heals grounded mons by 6% each turn and it boosts grass power. Alone this acts as a deterrent to Dugtrio shenanigans, because with half the power you're not doing
shit. Choice Banded Dugtrio does like 43% to max defence Toxapex. Not only that, but Earthquake is one of the most common offensive moves and coverage moves. You really, really benefit from every earthquake being significantly weaker.
But that's not all. 6% recovery for all of your grounded pokemon is amazing. Although this does effect your opponent, clever teambuilding really appreciates the passive recovery. For example, Aegislash. Aegislash
loves Tapu Bulu. Defensive Landorus-Therian's Earthquake is a roll to
3hko Aegislash with Grassy terrain up - you also give Aegislash 6-12% recovery each turn. But that's not all, Mega Pokemon, Chansey ect. all love the passive recovery that allow them to be a
tiny bit more careless.
This pokemon is bulky, it's got plenty of utility, it's got passive recovery in Leech seed + Protect, it removes ground weakness from virtually anything on your team bar Heatran, it gives recovery to every grounded pokemon on your team and it is a powerful wallbreaker.
Here's a core to try
Tapu Bulu + Aegislash + Toxapex