Hello,
Is it possible to declare an attack with zero character ?
The online reference rules states
QuoteThe active player chooses 1 enemy with whom he or
she is currently engaged, and exhausts any number
of characters he or she controls to declare them as
attackers against that enemy.
Can "any number" mean zero ?
If we look at the quest phase, the online reference rules states
QuoteIn player order, each player has an opportunity
to commit any number of his or her characters to
the quest.
I am pretty sure that it is possible to commit zero characters to the quest, but the wording is not exactly the same : it can be interpreted as "either don't use the opportunity to commit characters to the quest, or use the opportunity and commit any (at least one) number of characters to the quest".