The problem with counters, tech cards, is that they make your deck worse against most opponents for the sake of making it just slightly better against a few. Most tech cards are just not worth putting in your deck because drawing them doesn’t get you closer to your deck’s win condition. Robes might be better than some, but then again it’s been around a while and wasn’t played much in previous metas. I think there is usually a better card to include.
Clowns will always argue no problem, just use tech cards and act oblivious that a specified counter deck is weaker to the rest of the meta....also the matchmaker will seldom match you against a deck that you are teched against.