Editing The Horus Heresy: Legions (section)

===Agents of the Sigilite===

Malcador's Men in Black (grey). Unique mechanic is Seals, which denotes a unique type of tactic exclusive to the deck. Each seal cost 3 energy with a powerful effect, but when they are generated they are shuffled into the deck first to prevent them from being total game breakers. Malcador’s forces are a mix of Knight-Errants(Space Marines who act as Malcador’s agents), guardsmen, and temple assassins.

You have a few sneaky tricks like setting traps (not like the Alpha Legion card, mind) when your enemy draws certain cards, a fair smattering of stealth and some very leftfield abilities to thoroughly dick with your opponent. However, you do really need to get some seals in play to get an edge and your enemy is going to be canny enough to make sure you don't. Quite a few of your trick cards also rely on correctly predicting which card an enemy will use on their next turn or have their utility based on when an enemy card is played, so you are subject to a lot more RNG and general luck than any other deck outside the Alpha Legion.