Ability · Gen 6 · 1 Pokémon
Desolate Land
On switch-in, extremely harsh sunlight begins until this Ability is not active in battle.
On switch-in, the weather becomes Intense Sun, which includes all the effects of Sun and prevents damaging Water-type moves from executing. This weather remains in effect until this Ability is no longer active for any Pokemon, or the weather is changed by the Delta Stream or Primordial Sea Abilities.
Desolate Land was introduced in Generation 6. 1 Pokémon and forms can have it.
Pokémon with Desolate Land
As a regular ability (1)
Groudon-PrimalDesolate Land FAQ
What does Desolate Land do?
On switch-in, the weather becomes Intense Sun, which includes all the effects of Sun and prevents damaging Water-type moves from executing. This weather remains in effect until this Ability is no longer active for any Pokemon, or the weather is changed by the Delta Stream or Primordial Sea Abilities.
Which Pokémon have Desolate Land?
1 Pokémon and forms can have Desolate Land: Groudon-Primal.
Effect text from Pokémon Showdown (MIT); which Pokémon have it from Showdown's Pokédex, cross-checked against PokéAPI. Unofficial fan site.