Hearthstone: Heroes of Warcraft

An online card game made by Blizzard, the developers of World of Warcraft.

In-Yogiverse
Lewis and Sips are currently doing a GvG Hearthstone Series on their Team Double Dragon channel:
 * 1) Hearthstone GvG #1 - Best of 3 (Sips vs. Lewis)
 * 2) Hearthstone GvG #2 - Another Best of 3 (Sips vs. Lewis)