Your kinda missing the point.The main reason why this would be played is because 1) its a dragon 2) buff decks might become a thing 3) spare parts. When you silence a shredder you deny 1/3 off the cards value but when you silence this you deny a extra buff which is not a part of the card but an extra bonus. If your buffing this once with shield and your opponent plays and owl he is going to get -1 mana from the silence and also have allready had -1 card in there hand for several turns. There will also be a lot better targets for silence meaning if your opponent silences this there losing an important resource. Having this be a important silence/removal target after only 1 power word shield buff makes it a great threat. Buffing this also makes it able to trade a lot better then a shredder would.
This card will most likely be played along with hungry dragon and the other dragon cards in a deck with buffs for both this and the egg along with a unreleased card which will prblly be something like gain x/x for x amount of dragons or x amount of dragons killed/played this costs x less. Looking at the mechs as stand alones makes them look like bad cards but when put in a mech deck they become good and its the same way with the dragon cards. These new dragon cards might solve the priest problems by making all the shitty buff cards actually played for a reason other then just making a 3/2 bigger.
I can only argument with what I know. I said that the unreleased cards MIGHT contain cards which make this card viable, but as it currently is, I don't see any Deck in which this card would take a 4-Slot and the card itself isn't strong enough to justify building a Deck around it.
And I specifically talked about Priest, which is clearly in need of stable ALLROUND cards instead of the next situational IF/THEN-Drop.
So we have to see if that it's a Dragon is good enough (But I haven't seen Dragonwarpers and Dragon Blastmages yet :P),... And yeah there might be viable Buff Decks, but given the nine released card I saw so far, none of them would be good enough to make a cut into this direction.
In terms of Spare Parts however you're right. Because if you Buff him only once with cards like Velen's Chosen, he is just 1 Health better than a Yeti and let's be honest: How many spellcard-buffs do you think are you able to place on a single creature?
So I think, unless there are some crazy new Buff-cards released, the only Deck where I can see this card's effect shine is in a really Spare Part heavy Deck, which allows 2 or more cards to be played on the minion. Otherwise you will always be better off with a Yeti or a Shredder, which can be dropped on the board without the requirement for additonal specific cards.
And there are a lot of Mechs which are far from being bad cards on their own:
Sneed's Old Shredder, Piloted Shredder, Piloted Sky Golem, Shielded Minibot, Harvest Golem, Clockwork Gnome and Annoy-o-Tron all see play outside of Mech-themed Decks. And don't forget the Boom Bots ;)
I mostly agree with this. However I still think there is solid potential here, at least for priests. I am not talking about crazy combo cards, that really isn't synergy per se'. I think a power word shiled, or velen's is really good here sure, but I am thinking of a mid range priest deck that gives you a little more for your buffs and punishes your opponent for silence attempts or removal attempts with Troggs as well. So you get a little extra out of all your buff spells with this guy and they (your opponent) gets "less" out of each of their spells.
I am less certain about this guy in almost every other class. Paladin I can see him being ok.
I think the key way to look at this card is not to do it from a "building a deck around him" view point, but rather what sort of deck will he fit in well with. This is why I think your point is so great. He is obviously good in a buff deck, but buff decks aren't a thing now, and he isn't likely to make a huge change in that respect. That being said, we'll have to wait and see. I think he will see some play for sure, but his biggest set back isn't that he is bad, but simply there is a 5/6 I can plop down on the field for the same cost right now.
Yeah as I said before,... He needs to eat at least 2 buffs to really outperform a Yeti,... And I think esp. for a Priest Deck, which has to run Auchenai Soulpriest in the current Meta, you have to pick your other 4 drops wisely,... And gambling on being able to e.g. place PWS together with VC on the Dragonkin doesn't seem like save enough value to me,... especially since you make yourself really really susceptible to silence in such a situation, because an Owl will eat up 2.5 cards. ;)
As you said: With the new 5/6 Dragon, Yetis or Shredders, there are way safer ways of delivering value in the 4-Slot.
I have to disagree. A shredders biggest boon is it's stickiness, which is due to it's deathrattle. You take that away and it's a really weak card. At least with a 3/5 you have a card with a decent body still around. Sure you may lose the buff card you stuck on him but there is a far larger possibility of getting a two for one with the silenced of the dragonkin. As a matter of fact, he could potentially trade for two shredders!
Though Shredder may not be the best card to compare the dragonkin too in a head to head situation as the dragonkin feels like it is almost a counter to the shredder in and of itself.
There is a card called Chillwind Yeti,... It trades with Piloted Shredders too, has better base stats than the Dragonkin and is "immune" to silence but even this card isn't seeing much play anymore,... :P
I think the issue here is that you are looking at this as a card to "build a deck around". It isn't that. He would fall in line as a descent card in a deck with an already preset set up like a buff deck. Buff decks are susceptible to silence sure, but a TON of cards are. Some are rendered almost pointless if silenced but they still see play. Point is if I am playing a buff deck the hope is that I will have more buffs and buff synergy than they have silence. I'll be honest, if I stick a buff on this dude and he draws a silence, that is a straight up win for me.
Don't look to build a deck around him but look to see if he fits in any current deck ideas (heavily played or not). In the end I am not sure how much play this guy will see being up against a 5/6 dragon at 4 mana, and to me that is still the biggest "problem" with this card.