With the new water stadium, Mega Audino can have high sustain, reaching upwards of 110 HP per turn with two Brambleghast, Audino, and the Stadium. Mantyke for ramping amd getting Audino online faster and free retreat. Field Blower and Heavy Helmet are the key flex spots. The deck is weak to Oracorio, but I am not sure what to include as an answer that does not reduce the consistency of finding Audino.