Rainbow Gun (Era-3. S2 E7)

Rainbw Gun is an episode of Era-3's season 2.

Synopsis
Marshmalian tech was state of the art, but not weapons. Until now.

Marshy start. Yay.
The Diamonds are meeting with the Marshmalian leaders about where to go next when it comes to development, but this time King Silica has brought in a new form of development. This time they have developed the first ever Marshmalian weapon. As for what it was, it was...a rainbow gun.

Yellow Diamond was clearly unamused and said,"Will this really do any real damage?", though the moment the weapon was fired, all doubts were carried away the moment a large colorful explosion BURST from the point of impact.

Blue Diamond and Yellow Diamond were surprised that they could engineer a weapon so powerful for the first time, but they say

Questioning
In a private moment, Yellow and White Diamond decide to talk privately about why they are working with the Marshmalians. White Diamond insists that  it's the way Homeworld will be saved. Yellow Diamond gets skeptical, as she looks at a starch right beside her. The starch then sneezes out glitter, Yellow Diamond jumps and ghasps, and White Diamond's gloves are covered in glitter.

The starch proceeds to cheerfully say "YAY! I sneeze glitter!" and Blue Diamond says "Looks like we're going to have to fine you." and the starch asks why which Blue Diamond responds with "For Glittering!" which everyone except White Diamond starts laughing.

White Diamond slightly moved her glove, but she saw black veins, and ran off, making sure nobody knew about it.

Secret
White Diamond ran into a cave, looking very flustered. She was clearly looking for someone. By the time she found the destination room, there was a crystal, but it was empty.

White Diamond ghasped and said "IT's freed. Just as I thought." and ran off.