>>50210060To give you an idea on how strong digimon can be Weregarurumon physically destroyed a massive rock formation. You could even classify it as a small mountain.
https://invidious.namazso.eu/watch?v=839aBJ-GcxcI'm doing this for a good reason but if I reveal the reason then my plan goes to waste. I'm also not denying that pokemon can't beat a single adult. Most pokemon could give most adult level digimon a good fight. It's just when you get to perfect level that it becomes impossible for regular pokemon to keep up. Earlier lance's dragonair had a hyper beam comparable to an average perfect attack. Which is the absolute pinnacle of regular pokemon due to being owned by a elite four/champion tier trainer. And even then digimon can spam that level of attack. Something which Dragonair probably isn't capable of.