Friendly Adeptus Astartes Infantry Character units have the following ability:
Countercharge: (Once per battle round, per unit) You can target this unit with the Heroic Intervention stratagem, regardless of any other uses of that stratagem this phase. If you do:
That use does not prevent any uses of that stratagem on other units this phase. Restrictions: Your army can include SPACE WOLVES units, but it cannot include any ADEPTUS ASTARTES units drawn from any other Chapter.