>>28703636It depends what the card says. Max Revive says to put any Pokemon to the top of your deck. Azumarill is any Pokemon. Marill is any Pokemon. Azumarill and Marill would be two different Pokemon.
Things like actual Revive and Target Whistle on the other hand, specify a basic Pokemon. That's not what Azumarill is, so that's not a valid target.