Look at that goddamn collar
We finally get to meet the biggest bad dude in Digimon history, Myotismon, in episode 26 "Sora's Crest of Love", in Japan "Shining Wings! Garudamon", DVD title "Glorious Wing, Garudamon".
Along the way: We finally learn the meaning of the crests weeks after the kids have already mentioned knowing what they are, DemiDevimon kills Biyomon with a comically large syringe, Myotismon harnesses the power of poor 3D animation after the GREATEST entrance of all time, and Garudamon expresses her love. By squawking.