Consecrate Land

Enchantment — Aura

Enchant land
Enchanted land has indestructible and can't be enchanted by other Auras.

2005-04-01:
The land can be targeted by land-destroying spells and the spell will resolve, but the land will simply not be destroyed.
2006-09-25:
If Consecrate Land enters the battlefield attached to a land that’s enchanted by other Auras, those Auras are put into their owners’ graveyards.
2013-07-01:
A permanent with indestructible can’t be destroyed, but it can still be sacrificed, exiled, put into a graveyard, and so on.