The Gathering Storm II

In a crackle of Warp-light, Eldrad materialised amongst the Thousand Sons, the glowing Staff of Ulthamar spinning to shatter their armour as if their ancient battle-plate were made of no more than fine china. The fight in the tunnel descended into anarchy around him as the Ulthwéans pressed in again and again, their morbid black and bone armour lit by the neon-bright, mind-searing hues of the raging psychic battle.
In anarchy and mayhem, the forces of Tzeentch thrived.