Dugtrio's a classic because of its Arena Trap ability and its Speed stat, combined with a respectable Attack. In all honesty, its really an idiot savant - its defenses are so low I wouldn't imagine it accomplishing much else. Trapinch has the same ability and a better Attack, but should only be used in a Trick Room because of its dreadful speed (and equally terrible defenses).I'm looking for an effective physical revenge killer. Can someone give me some ideas?