[quote=@Darkraven]
<Snipped quote by The Fated Fallen>

[@Sypherkhode822] I was wonderiing that too. So I was thinking: 'Man, Marguerite should probably aim carefully and try not to hit the ground or she might split the planet in two.' :lol

Either that or it would be a severely underwhelming spell, because light doesn't pass through most things.
[/quote]

Excellent Prismatic Spray just comes from Tales of a Dying Earth. Really, it's like an extra-rainbow-y magic missile. It's not carving through planets anytime soon. Maybe small, very porous planets made of a soft crumbly cheese.