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First, why can't the sky be the third tier?
And secondly, I would prefer it if the third tier was underwater, and consequently, a race of underwater creatures.
My sword, my trusted ally, unphased by my aspect.

New here? I'm Roha — want a quick tour?
First, why can't the sky be the third tier?
And secondly, I would prefer it if the third tier was underwater, and consequently, a race of underwater creatures.