Is Gyro Ball's power completely affected by the user's speed?

Question

Is Gyro ball like the opposite of body press for speed or does it use the users attack stat as well?

Comments

https://bulbapedia.bulbagarden.net/wiki/Gyro_Ball_(move)#Effect
It should be, as its damage calculation doesn't consider Attack.
e: I tested it through a battle and the Pokémon with higher Attack got better rolls.

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It's base power is affected by the user's speed relative to the opponent.  It still uses attack for it damage calcs.

Answer 1

Gyro Ball has higher base power the slower the user is relative to the target. Its power increases based on the difference between the speed of the target and the speed of the user. It damage calculation still takes your Attack stat into account, however:

0 Atk Ferrothorn Gyro Ball (126 BP) vs. 0 HP / 0 Def Weavile: 366-432 (130.2 - 153.7%) -- guaranteed OHKO
252 Atk Ferrothorn Gyro Ball (126 BP) vs. 0 HP / 0 Def Weavile: 468-552 (166.5 - 196.4%) -- guaranteed OHKO

As you can see, the Ferrothorn with a higher Attack deals more damage.

The exact formula to find the base power is in the Bulbapedia article below.
Source

Comments

Ok thanks