Skitterbeam Battalion

Casting a prototyped spell isn't the same as casting it for an alternative cost, and an alternative cost may be applied to a spell cast this way. For example, if an effect allows you to cast an artifact card without paying its mana cost, you could either cast Blitz Automaton normally, or as a prototyped spell.

When casting a prototyped spell, use only its prototype characteristics to determine whether it's legal to cast it. For example, if Blitz Automaton is exiled with the last ability of Chandra, Dressed to Kill, you would be able to cast it for 2 generic mana red mana (because it's a red spell), even though you wouldn't be able to cast it as a colorless spell for its normal cost.

The copies will have the same mana cost, mana value, color, power, and toughness as Skitterbeam Battalion, which vary depending on whether it was cast as a prototyped spell.