Dexter

dogeball amour,blossem dynomo suit,skeloton suits,space jack suits,dexstar suits,samuri suits

Edd

urban ranger suits,black knight amour,bloo suits, lord sontax amour suits,candy pirate suit, SACT suits

Ben

KND defense suits,galatic enfocer suits, sumo slammer suit, special exterminater suits,plumer suits

Mojo Jojo

morbucks suits, battle ready suits,mandark suits,mokey minion suits,forever knights amour,plumer suits

No, the noun 'battle' is not a standard collective noun, however, collective nouns are an informal part of language. Any noun that suits a situation can function as a collective noun, for example, a battle of ideas, a battle of patterns, a battle of heirs, etc.

Yes they all get pwr {power} suits to battle the pirates!

ok... i really don't know

they wore heavy suits rough sheep skins over their battle dress.