Evident's Comments
MrYagut's Dragon Rogue (June 2016, Season 27)
You probably need another Dragon, so I’d try Chromaggus or Nefarian.
Sjow's C'Thun Control Warrior (June 2016, Season 27)
Ragnaros, Cairne, or maybe just the second Beckoner.
Xzirez's Legendary Dragon Warlock (June 2016, Season 27)
You could cut one Sunwalker or Earthen Ring Farseer probably.
Tempo Dragon Warrior (60.7% Winrate from Rank 9 to Legend) Deck List Guide
Second Fierce Monkey.
NickChipper's Rank 8 EU Legend N'Zoth Midrange Hunter
Flame Juggler or River Crocolisk.
Midrange Shaman Deck List Guide (December 2016, Standard) - Season 33, Gadgetzan Meta
Second Feral Spirit, but you reduce your win conditions.
Sjow's C'Thun Control Warrior (June 2016, Season 27)
I’d just go second Beckoner of Evil.
Warlock Zoo Deck List Guide - Witchwood - August 2018
Way too slow and has no real synergy in this deck.
J4CKIECHAN's Yogg-Saron Token Druid Deck List Guide
You can try this version: http://www.hearthstonetopdecks.com/decks/ciphers-yogg-saron-druid-june-2016-season-27/
Warlock Zoo Deck List Guide - Witchwood - August 2018
Because you clear boards with your minions, Hellfire would be hard to play if you are constantly playing minions.
Warlock Zoo Deck List Guide - Witchwood - August 2018
Well, I think Midrange Hunter should also do the job for you, but Zoo is usually a good choice for climbing to legend. You don’t need Gormok or Leeroy. You can play the Doomguard version that doesn’t run either card: http://www.hearthstonetopdecks.com/decks/rdus-top-10-legend-warlock-zoo-may-2016-season-26/
Seems fine, you lose out on the Beast tag though.