Traitor noun – One who betrays a trust or an allegiance. Loyalist is an antonym for traitor in person who is disloyal topic. Nearby Words: trait, traitorous, traitress
Fairly justified since his biggest role in the heresy was dying during the first major battle between loyalist and traitor forces (or the second battle, depending on who you ask).
Also prone to murdering a company worth of Space Marines, traitor and loyalist alike with officers and librarian and disappearing in a warp portal afterwards.
Furthermore, the knight wearing Lancelot's Armor can draw two black cards during his progression of evil phase and play one of them while placing the other to the bottom of the deck—regardless of whether he is a loyalist or the traitor.