Every single Warlock card from Kobolds and Catacombs saw competitive play (with Cataclysm in Mecha'thun). It's difficult to imagine what Warlock will look like after the rotation, aside from zoo. : r/hearthstone
Best Kobolds and Catacombs Decks - The Top Deck Lists for the Kobolds Expansion (KAC) - Hearthstone Top Decks
Three New Warlock Cards Revealed: Kobolds & Catacombs - News - Icy Veins
The best Hearthstone Kobolds & Catacombs decks to try so far | PC Gamer
Best Kobolds & Catacombs Decks So Far (Week 2) : r/CompetitiveHS
Best Budget Hearthstone Decks for the Kobolds and Catacombs Meta | Hearthstone: Heroes of Warcraft
Skipper - Warlock with a Fathomless patron : r/KoboldLegion
Three New Warlock Cards Revealed: Kobolds & Catacombs - News - Icy Veins
Hearthstone Meta Report: Priest, Paladin, and Warlock - Esports Edition
Hearthstone: A chat with Blizzard about Kobolds & Catacombs - Hearthstone: Heroes of Warcraft - Gamereactor
Best Budget Hearthstone Decks for the Kobolds and Catacombs Meta | Hearthstone: Heroes of Warcraft
Hearthstone Kobolds and Catacombs Expansion, Dungeon Runs, Card Guide - Everything We Know | USgamer