Greyshield

Once per battle, at the start of your Movement phase, if your Warlord is on the battlefield, you can choose for INDOMITUS CRUSADER units in the same Detachment as your Warlord to gain an additional Chapter Tactic until the start of your next turn. Pick the additional Chapter Tactic from the following: Codex Discipline, Lightning Assault, Siege Masters, Righteous Zeal, Master Artisans, Shadow Masters, The Flesh is Weak (see Codex: Space Marines).Until the start of your next turn, friendly INDOMITUS CRUSADERS gain the benefit of that Chapter Tactic in addition to any others they already have. They are considered to have the keyword of the Chapter that Chapter Tactic belongs to for the purposes of resolving that Chapter Tactic.