Refrigerate
Turns the bearer's Normal moves into Ice moves and strengthens them to 1.3× their power.
Full effect
Turns the bearer's Normal-type moves into Ice-type moves. Moves changed by this ability have 1.3× their power.
In game description
Normal-type moves become Ice-type moves. The power of those moves is boosted a little.
Pokemon with Refrigerate
Using Refrigerate in Cobblemon
Abilities are passive and always active, so Refrigerate costs you nothing to run. If it is marked hidden on a species above, expect it to be harder to obtain: servers differ in whether hidden abilities come from breeding, an Ability Patch, or events.
See the Pokedex for which abilities each species can have, and IVs, EVs and breeding for how to actually pass one down.