Best Uberhero to use in Shield Class

Taterazay is the best of the best at defensive strategic play. His Uberhero Mode is unreasonably amazing but takes time to improve his shield evasion skills. Tondenga is a good damage dealer and also a good front line defensive Uberhero but needs levelling up to improve himself. Bowmunk is extremely good as he can heal your army but he exposes himself in the process which may lead to unexpected tragedies. Myamsar will acquire a class skill which makes him immune to any status effects while attacking but he does not bear a shield which is a disadvantage. Guardira is also quite good and has the same Uberhero Mode as Taterazay except better and he does not bear a weapon.