One example that immediately springs to mind is an RMT made by someone who I commonly converse with about our stall teams, Daunting Dreadnoughts . I also am working on laddering with a Rhyperior stall team, and will RMT that sometime. Stall right now is perfectly possible, and will be even more so once Mega Kangaskhan, pinsir, and the other broken mons are removed. Defog makes it so now, stall only runs SR, and has made Offensive Stall the most popular type.
Although there have not been any significant additions to stall besides Mega Venusaur, the nerf to Rain and Sun was huge for stall. It is still definitely viable.What Offensive Stall is:
EDIT: Mega Luke will probably be banned, but it can still be dealt with with Gyarados and Zapdos.
I actually think mega Pinsir is one of the easier megas to deal with. Just use Skarmory. As far as Gyarados as a mega Luc counter, a max def Gyara can take a +1 close combat (intimidate + swords dance on the switch) but can't do much in return unless you run earthquake, which you probably don't on a stall team. Zapdos is better, max physical def can take a +2 CC and thunderbolt comes really close to KOing (83-99%) after the CC drop.
I haven't thought about mega Lucario needing a ban, but if he ever did get banished to uber land, it would be huge for stall. This 1 mon is the biggest threat to the playstyle aside from Kanga (who's all but guaranteed to go to ubers IMO).