I agree with Omega Devastator completely. The entire playstyle of warrior right now makes it mandatory to reach 10 mana, so that card is just a delayed 4 mana deal 10 damage. On top of that you're almost guaranteed to get it from Omega Assembly (another very strong card) and from Boom hero power (in my experience). I think it needs to lose the mech tag for it to lose the dumb card title.
The rest are not that obnoxious. Vargoth is only consistent in Res Priest, The Forest's Aid is a fair card, without Twinspell it would be bad, Archivist Elysiana... While yes, it makes Control Warrior Kingsbane Rogue-like regarding fatigue, it's a good card to counter decks with Hakkar and Bomb Warrior.
Blastmaster Boom is a card that only works in a single deck, and that deck is far from OP, so I wouldn't say it will have too much of an effect on the overall game. Bomb Warrior is just a new archetype that has proven to be good so it's popular right now.
As for Angler, I don't really have an opinion, as I haven't encountered them very often.