Is Sheer Force effective on all moves affected by items?

I have a Mawile running a Life orb and Sheer force set, and I was wondering if it could encompass all moves that were given effects by items, such as the Razor fang. Most likely it can’t, as that would allow it and Copperajah to fire steel beams and get off scot free, no recoil, but I just wanted to make sure

Pleaselog inorregisterto add a comment.

The Ability Stench and the held items Razor Fang and King’s Rock grant additional effects to moves, though (in the case of the held items) they do not interact with Sheer Force.

source

Reducing the target’s stats, increasing the user’s stats, inflicting a status condition on the target (volatile or otherwise, but excluding bound), and causing the target to flinch are all considered additional effects, so damaging moves that have a chance (up to and including a 100% chance) to cause these effects will have their power increased, in exchange for ignoring whatever chance they had to cause these effects. Furthermore, Anchor Shot, Eerie Spell, Genesis Supernova, Secret Power, Sparkling Aria, and Spirit Shackle are explicitly considered to have added effects that can be removed by Sheer Force. However, Thousand Waves, whose effect is otherwise identical to Anchor Shot and Spirit Shackle, is not.

Sheer Force does not consider recoil or decreasing the user’s own stats to be additional effects.

sourceThe game handles life orb recoil very differently from move recoil.

I think your question is addressed by DB’s entry on Sheer Force itself, isn’t it?

I quote (with specifics on non-beneficial effects and interactions with Life Orb in Bold):

Sheer Force increases the power of moves that have beneficial secondary effects by 30%, but removes those additional effects.

Beneficial effects are defined as those that are positive for theuser, such as:

Causing a status condition on the opponent (e.g. Thunderbolt) Reducingthe opponent’s stats (e.g. Crunch) Increasing the user’s stats (e.g.AncientPower)

Non-beneficial effects, that Sheer Force will not activate for, include:

Recoil damage (e.g. Double-Edge) Lowering the user’s stats (e.g. Superpower)

If the user is holding a Life Orb and uses an attack that activates Sheer Force, it will not receive the 10% damage from Life Orb, but itgets boosts from both Life Orb and Sheer Force (total of 69% basepower increase).

The entry page also provides what I suppose a comprehensive list of abilities that interacts with Sheer Force.

Link:https://pokemondb.net/ability/sheer-force