Day 11 of the Advent Calendar gives us a tutorial on doing Volcanic Bases (which is really cool), a painting for Nurgle, and a Black Library story with the Iron Warriors.
Advent Day 11: Black Iron $4.99
Black Library Advent Calendar: Day 11
Warsmith Kallus of the Iron Warriors chafes under his never-ending garrison duty within the Eye of Terror, driving him to forge a dark pact with Abaddon the Despoiler in his search for greater glory.
Advent Day 11: Warhammer Age of Sigmar Nurgle Painting Guide
Warhammer Digital Advent Calendar: Day 11
This Warhammer Age of Sigmar painting guide focusses on the followers of Nurgle.