I am not saying it’s bad, i just say it’s getting overrated here and we seem to be agreement in that point. It’s an inferior Lavaslasher but that’s still a pretty strong thing to be.
It’s not that easy. When looking at combos there are a bunch of things to consider
First thing is the impact when you use it. In this case the combo doesn’t win the game as you said, far from it. If it goes of early you have a strong tempo lead, that’s it. This can result in a win if the opponent has no answer/you have a strong follow up but as i said, it’s not that hard to deal with it which means it’s unlikely for you to just win the game with it. And this is the best possible case. It means you have to combo at the time where it has the biggest impact and your opponent didn’t just play around it.
If you get the Deceptibot later on, like turn 3+ the combo is far weaker as a vanilla 7/5 isn’t scaring anyone in the midgame not to mention late game.
The last thing is how good are the individual parts of the combo? Silver in a deck without any mechs with Keywords is just plain shit. Vanilla 7/5 for 6 even a Brightmoss Golem is better than that. Deceptibot is a 4/5 for 4 which is decent, but if you already had both silvers he is literally a vanilla 4/5 which is also not that good. (And yes i actually had this situation a few times). Protocol has the redeeming fact that you also have thunderhorn to combo with, but if have neither the card feels really bad as well. And against Songhai/Magmar/Vanar players who don’t even have a board to begin with, it feels horrible because you can’t go face with it.
So the way i see it, i have to dedicate 8 or even 9 deck slots to 3 cards that are mediocre/bad on their own and in the best case scenario give me a Lavaslasher. Is the best case good? Sure. Is the combo overall good? Guess so. But is it even remotely close to being broken? Imo, no it’s not.
An example for what imo is a good combo i could name Drogon + Crypto in Vaath. Both cards are strong in their own right and at any given point of the game and having both of them can just win you games you had no business winning. I’ve won games where my opponent had the entire board, 20+ life and the only thing he didn’t had was his General out of my attack range. That’s what i call a good combo. Ironically nobody ever complained about it…
Ps: For reference i’ve played 15 games with the deck and went 8/7 in S. Though i will say that the record probably could have been better, but my initial version of the deck wasn’t that great so the tweaking certainly cost me a few games.
By comparison my Midrange Ciphiron Deck is at 5/2 right now mostly because of how stupid Thunderhorn + Lost in the Desert are. The deck won games where i didn’t have a turn 1 play as player two while the Songhai deck lost a bunch of games despite having the combo turn 2. This is just my personal experience of course but going by that experience it’s pretty clear for me which deck is better.