ipotesi: A gioca [card]branco nauseante[/card] pagando il c.c alternativo.
B con [card]counterbalance[/card]rivela carta con c.c.2, lo neutralizza?
Allora
Cita:
107.3a - If a spell or activated ability has a mana cost, alternative cost, additional cost, and/or activation cost with an 
, <--X->, or X in it, and the value of X isn't defined by the text of that spell or ability, the controller of that spell or ability chooses and announces the value of X as part of casting the spell or activating the ability. (See Rule 601, "Casting Spells.") While a spell is on the stack, any X in its mana cost equals the announced value. While an activated ability is on the stack, any X in its activation cost equals the announced value.
, <--X->, or X in it, and the value of X isn't defined by the text of that spell or ability, the controller of that spell or ability chooses and announces the value of X as part of casting the spell or activating the ability. (See Rule 601, "Casting Spells.") While a spell is on the stack, any X in its mana cost equals the announced value. While an activated ability is on the stack, any X in its activation cost equals the announced value.Dalla 107.3a interpreto di no
E' corretto?
Grazie in anticipo