Wonder Room

psychic status

All Pokémon’s Defense and Special Defense are swapped for 5 turns.

Stats

PowerNone (status move)
AccuracyNever misses
PP10
Priority0
Categorystatus
Targetentire field
IntroducedGeneration V

In game description

The user creates a bizarre area in which Pokémon's Defense and Sp. Def stats are swapped for five turns.

Pokemon that learn Wonder Room

Showing the first 40. Availability varies by server, since some restrict move tutors or TMs.

Using Wonder Room in Cobblemon

Wonder Room deals no damage, so its value is entirely in what it sets up. Status moves are usually the difference in a close gym fight, and sleep or paralysis also make a wild Pokemon far easier to catch.

Check the type chart before relying on it, and look up specific targets in the Pokedex where dual-type multipliers are already worked out.