Relevant card text:
Libertas: Cards that require Dominate [dom] or Presence [pre] cost
other minions an additional blood while this anarch is acting,
attempting to block, or in combat.
Blessing of Chaos: If this vampire attempts to block, the acting
vampire cannot play action modifiers requiring ...
Correct (card text).
> but
> have to ask because afaik Blessing of Chaos has it's effect applied
> until the end of the action in similar situations.
Also card text.