Must be played (as well as other "as the action is announced" action modifiers) before action modifiers that are not explicitly played "as the action is announced" (e.g., Conditioning).
101975
Those Who Endure Judge
Requires a Laibon with capacity above 4. Only usable when the action is announced.
The acting vampire gets two additional votes in any referendums conducted during this action (even blood hunt referendums). Any younger vampire successfully blocking this action burns 1 blood (before combat, if any). If he or she cannot, the block fails and the action continues as if unblocked.
Rulings
Replace the action card (if any) before playing it.
If the action continues "as if unblocked", all action modifiers and reaction cards are still in effect, even those pertaining to a successful block.
If the action continues "as if unblocked", any Methuselahs that have declined to block before do not get another opportunity to block.
For actions resulting from an action card, "continue as if unblocked" moves the action card from the ash heap (where it went when the action was blocked) to limbo (where it should be if the action is not blocked). If the action card is not in the ash heap, then the action cannot be continued.