Evident's Comments
Oil Rogue Deck List Guide - April 2016 (Season 25, Wild)
I would go with second Violet Teacher. It’s still a solid deck without Thalnos.
Update: Zetalot's Djinni of Zephyrs Midrange Priest
That is a card that fluctuates, so I would go with a second Shadow Word: Death.
Update: LifeCoach's Highlander Reno Jackson Paladin
Sunwalker for one, and maybe a Boulderfist Ogre or Guardian of Kings… You are replacing really sticky minions, which is tough to replace at that mana cost.
Mryagut's Season 19 Midrange Bloodlust Shaman
Al’akir is a strong card, but it can be a bit slow. This deck is more about getting minions on board and finishing them with Bloodlust.
Mech Mage Deck List
I think I’ve seen that before, I would stick with Antonidas, but you could try it!
11point5ft's Jeweled Scarab Control Shaman
Neptulon is good for card advantage in the late game. Ragnaros is an okay replacement, but Nefarian serves that purpose better. Nefarian is more mana, so it’s not as good as Neptulon.
Update: Zetalot's Djinni of Zephyrs Midrange Priest
That kind of defeats the purpose the deck!
Thijs' BlizzCon 2015 Dragon Priest
It looks like Shadow Word: Pain and Vol’jin got cut. Dragonkin Sorcerer is also added to this deck sometimes.
Oil Rogue Deck List Guide - April 2016 (Season 25, Wild)
Second Earthen Ring Farseer or an Edwin VanCleef.
Midrange Paladin Deck List Guide - April 2016 (Season 25, Wild)
Coghammer can be really good, but I wouldn’t necessarily craft it right away. I’d try the deck without it and see how you like it.
Update: Zetalot's Djinni of Zephyrs Midrange Priest
I’ll update the list when he’s done streaming!
Dr. Boom or Ragnaros.