>>22784410Okay, I've run two competitively, and currently don't have any.
Defogger 1: Mandibuzz
+This is my favorite Pokemon to use competitively
+Bulk is great, it's really a safe switch in on lots of things
+Good offensive presence with Foul Play
+Roost for reliable healing
+Causes lots of switches which you can punish with Knock Off or Toxic
-Has so many other good moves to run, it's hard to fit Defog in
-Flying so it takes extra Stealth Rocks damage
I kept Mandibuzz, but removed Defog. Every Mandibuzz set should have Foul Play and Roost. That leaves two more slots for you choice of Defog / Taunt / Whirlwind / Knock Off / Toxic
Defogger 2: Latias
+Good offensive pressure with LO Draco Meteor and coverage move
+Awesome speed tier
+Multiple viable sets, so opponents have to guess
+Has room for one utility move of your choice
-Very predictable once opponents know the item
-Halves its special attack after Draco Meteor
-Easily trapped by Bisharp
I removed Latias from my team because I felt it wasn't carrying its weight enough. I find it kind of difficult to bring in, so it wasn't Defogging all that often.
Currently I run Excadrill with Rapid Spin.