Full stall needs to be taken into account when teambuilding, especially as some of the new Megas fit very well on stall, such as Mega Latias and Mega Sableye, which can both wall a significant number of pokemon and serve as a win condition. If you play passively against stall with a non-stall team, then you're likely to lose, as while stall teams will almost always have at least one pokemon that beats one of your 6 pokemon 1v1 (ie. a check), they won't necessarily have counters, making double switching one of the most effective means of pressuring stall teams. One method I use, is to take good stall teams, for example http://www.smogon.com/forums/threads/oras-ou-sample-team-thread.3521695/#post-5849864 and without looking at the sets or explanations, compare your team and think about how you might try and outplay them; for example, if your team included Bisharp + Mega Gardevoir, and you had a matchup of Bisharp vs Clefable, Chesnaught is a good counter to Bisharp, and the most reliable Bisharp switchin on the team, so you could bring in Mega Gardevoir on the predicted Chesnaught switch and keep the momentum on your side, instead of going for an attack and then being forced out by the threat of Drain Punch, and so on.I could use some advice on how to get around fully invested stall teams.