Name:Boom
ManaCost:1 R
AlternateMode: Split
Types:Sorcery
A:SP$ Destroy | Cost$ 1 R | TgtPrompt$ Choose target land you control to destroy | ValidTgts$ Land.YouCtrl | SubAbility$ DestroyOpp | SpellDescription$ Destroy target land you control and target land you don't control.
SVar:DestroyOpp:DB$ Destroy | TgtPrompt$ Choose target land you don't control to destroy | ValidTgts$ Land.YouDontCtrl
SVar:Picture:http://www.wizards.com/global/images/magic/general/boombust.jpg
Oracle:Destroy target land you control and target land you don't control.

ALTERNATE

Name:Bust
ManaCost:5 R
Types:Sorcery
A:SP$ DestroyAll | Cost$ 5 R | ValidCards$ Land | SpellDescription$ Destroy all lands.
Oracle:Destroy all lands.