Abilities, Speed Boost
10 species have Speed Boost as a hidden ability, 3 as a normal one
Of the 1,025 species this site covers, default forms only
SinceGen III
Normal3
Hidden10
Elsewhere1
Effect, in PokéAPI's words
“Raises Speed one stage after each turn.”
As a hidden ability
As a normal ability
Elsewhere in PokéAPI
1 more holder without a page here
Alternate forms and other species that PokéAPI lists with Speed Boost.
Blaziken Mega