I'm pretty sure they never did in the end times either, but earlier editions did they?
In 6th edition, unmarked Chaos Warriors, Knights, Chariots and Characters were allowed to reroll failed psychology tests, this was called the Mark of Chaos Undivided. In some cases, this was better than the MoS, which made you immune to psychology back then and rendered you therefore unable to flee as a charge reaction. I had much fun and really good success with undivided Chaos Lords wearing the Helm of many Eyes. BSBs only allowed to reroll break tests in 6th, so the Mark of Chaos Undivided was the best source to remedy the stupidity that came with the Helm. It was a really strong rule in 6th, and was changed in 7th to "The Will of Chaos", which allowed all units with this rule to reroll panic tests, in addition to other effects from a Mark of Chaos.
Post by FvonSigmaringen on Jan 6, 2023 23:14:44 GMT
To add to bierbaron: in the 6th edition Hordes of Chaos AB, for units that could have a Mark, the Mark of Chaos Undivided was the default position, which could be swapped for another Mark at an extra cost.