Alphamon

Q:When my opponent activated this card's [On Play][When Digivolving] effect, my Digimon with a play cost of 9 or less digivolved in my next turn and became a Digimon with a play cost of 10 or more. Can I attack with this Digimon?

A:No, you can't.

Q:A Digimon with a play cost of 9 or less attacked a player, digivolved using a [When Attacking] effect, and became a Digimon with a play cost of 10 or more in a state where this card's [On Play][When Digivolving] effect was activated for my opponent. What happens to the attack in such cases?

A:The attack has already been declared, so the attack will continue.