Dug on defensive teams is typically focused on removing things that can break your defensive core. There are a limited number of mons that can break a say, Milo + Bliss + Skarm team and many of them are trappable by dug such as tar, meta, cmers (rachi/celebi/raikou). It's worth noting however, that unlike special offense teams, this dug is not EV'd to live Blissey Ice Beam and should therefore only be used to revenge a low blissey or one that has revealed no Ice Beam. It also provides these low speed stat teams with a form of speed control (only outsped by Aero/Jolt).Quick question about Dugtrio on more defensive teams: what is it usually used to target on those teams? I get how to use it on ZapDug offense (remove special walls so Zapdos/Starmie can clean up), but if I'm trying a defensive TSS type team with Dug on it (i.e. several sample teams, like this), what types of mons does it typically try to eliminate on those teams?
The other thing to consider about Dug + defense is that opponents typically try to punish dug entries by getting a threat in afterward (e.g. ddmence, subzard, subzap, etc). On dug offenses this can pose a big risk due to the lack of defensive backbone. On dug stall, you can usually neutralize the tempo loss from trapping something with dug by just bringing in Milo or Blissey. So in many respects Dug makes typical stall cores better, and typical stall cores make Dug better. Hence why they so often go together.

















