Tailwind

flying status

For three turns, friendly Pokémon have doubled Speed.

Stats

PowerNone (status move)
AccuracyNever misses
PP15
Priority0
Categorystatus
Targetusers field
IntroducedGeneration IV

In game description

The user whips up a turbulent whirlwind that boosts the Speed stats of itself and its allies for four turns.

Pokemon that learn Tailwind

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

Using Tailwind in Cobblemon

Tailwind 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.