Evident's Comments
Thijs' Midrange Hunter (Standard)
It stops early aggression, it’s being added to a lot of decks.
Hearthstone EU Spring Preliminaries 2016 Decklists!
There was no outright winner. The top-8 qualified for the EU Spring Championships and the victor will be decided there. I listed the top-8 here: http://www.hearthstonetopdecks.com/hearthstone-eu-spring-prelims-top-8-winners-bracket-decklists/
Sjow's #1 Legend Tempo Warrior (Standard, May 2016, Season 26)
Second Acolyte might work.
Brian Kibler's N'Zoth/Yogg-Saron Control Priest (Standard, Season 26)
Maybe just try Northshire Cleric?
AKAWonder's C'Thun Druid - Hearthstone EU Spring Prelims 2016
It’s pretty strong in this deck, but I’d probably add a second Mire Keeper rather than craft it.
Brian Kibler's N'Zoth/Yogg-Saron Control Priest (Standard, Season 26)
You should craft her, I wouldn’t put her in the Dr. Boom category but she’s close. You could try a second Thoughtsteal for a temporary fix.
Ryzen's Malygos Rogue (May 2016, Season 26)
Acidic Swamp Ooze (if weapons are troubling you), second Earthen Ring Farseer, Violet Teacher, and second Gadgetzan Auctioneer. You could also add a Dark Iron Skulker for something.
Eloise's (Standard) Midrange Hunter (May 2016, Season 26)
Hunter lacks card draw so it can help alleviate that, I’m not sure it belongs in the deck though.
DarkClaw's #1 Legend Control Warrior (Standard, May 2016, Season 26)
That should be fine, you could also run a second Ravaging Ghoul (for one).
TerrenceM's Aggro Shaman - Dreamhack Austin (Standard)
It sticks to the board and pairs well with cards like Abusive Sergeant and Flametongue Totem for free trades because of the Divine Shield.
Midrange Patron Warrior Deck List Guide (July 2016, Standard) - Season 28
Yes, that’s on my todo list!
JustSaiyan's WoTG Standard C'Thun Warrior
I think he was playing this more as a Midrange deck rather than a Control deck. This more recent list has Shieldbearer: http://www.hearthstonetopdecks.com/decks/akawonders-cthun-warrior-hearthstone-eu-spring-prelims-2016/
Update: Brian Kibler's WoTOG Standard Dragon Paladin
You could maybe go two Faerie Dragon to help in your early game.
Sjow's (Standard) Tempo/Midrange Mage (May 2016, Season 26)
Second Mirror Image and Ethereal Conjurer.
Dodje's Ramp Druid - Hearthstone EU Spring Prelims 2016
Maybe go second Raven Idol. Two Nourish does feel like a lot, but it is a Ramp Druid.
Midrange Patron Warrior Deck List Guide (July 2016, Standard) - Season 28
I’m not sure Thaurissan is that great for this deck, but you could cut a Slam.
Arcane Shot sorta works.