Double-Edge

Double-Edge is a Normal-type move introduced in Generation 1.

Values by generation

From PokeAPI's change history. Up to Generation 3, physical or special depends on the type. Highlighted cells changed from the previous generation.

Generation	Type	Category	Power	Accuracy	PP	Priority
Generation 1	Normal	Physical	100	100	15	+0
Generation 2	Normal	Physical	120	100	15	+0
Generation 3	Normal	Physical	120	100	15	+0
Generation 4	Normal	Physical	120	100	15	+0
Generation 5	Normal	Physical	120	100	15	+0
Generation 6	Normal	Physical	120	100	15	+0
Generation 7	Normal	Physical	120	100	15	+0
Generation 8	Normal	Physical	120	100	15	+0
Generation 9	Normal	Physical	120	100	15	+0

Gold / Silver · Crystal	A tackle that also hurts the user.
Ruby / Sapphire · Emerald	A life-risking tackle that also hurts the user.
FireRed / LeafGreen	A reckless, life-risking tackle that also hurts the user a little.
Diamond / Pearl · Platinum · HeartGold / SoulSilver · Black / White · Black 2 / White 2	A reckless, life-risking tackle. It also damages the user by a fairly large amount, however.
X / Y · Omega Ruby / Alpha Sapphire · Sun / Moon · Ultra Sun / Ultra Moon · Let’s Go, Pikachu! / Let’s Go, Eevee!	A reckless, life-risking tackle. This also damages the user quite a lot.
Sword / Shield	A reckless, life-risking tackle in which the user rushes the target. This also damages the user quite a lot.
Legends: Arceus	A reckless, life-risking tackle in which the user rushes the target. This also damages the user.
Scarlet / Violet	A reckless life-risking tackle in which the user rushes the target. This also damages the user quite a lot.

Red / Green · Blue · Red / Blue · Yellow	TM10
Scarlet / Violet · Scarlet: The Indigo Disk / Violet: The Indigo Disk	TM204
Legends: Z-A	TM56

All versions combined; see each Pokémon's page for game-by-game details.

Sources : PokeAPI (moves, move_changelog, move_flavor_text, pokemon_moves, machines)