Note: As yet uncreate three word effect.

If you're designing this set with modern design conventions, I would like to point out that this would almost certainly say "nonland permanents," which ruins the three word aesthetic.

But that's just Planar Cleansing.

Exactly.

Modern design convention allows this effect (see: Worldfire). And white is secondary at destroy all lands behind red, being merely unable to destroy individual lands. This js a destroy everything effect, not a wrath of god variant.