Historical Rules · 1 June 2014
Rule 112.6n
Official source text from the 1 June 2014 Rules release
Abilities of emblems, plane cards, vanguard cards, scheme cards, and conspiracy cards function in the command zone. See rule 113, “Emblems”; rule 901, “Planechase”; rule 902, “Vanguard”; rule 904, “Archenemy”; and rule 905, “Conspiracy Draft.”