Accuracy corrector say : When attacking, during the “Modify Attack Dice” step, you may cancel all of your dice results. Then, you may add 2 hit results to your roll. Your dice cannot be modified again during this attack.

R3 Astromech say : Once per round, when attacking with a primary weapon, you may cancel 1 of your focus results during the "Modify Attack Dice" step to assign 1 evade token to your ship.

I'm perhaps wrong, but R3 don't say that the die cannot be modified again during this attack.

So I imagine an X-wing rolling 3 or more dice, having a focus result that give me an evade, then rerolling that die and eventually others with the TL I had from my action.

I hope you see what I mean and you explain to me if I'm wrong.

No, you cannot do that. Cancelling a die is not the same as modifying a die:

When a die result is canceled, a player takes one die displaying the canceled result and physically removes the die from the common area. Players ignore all canceled results.

The Accuracy Corrector language forbidding further dice modification is there to prevent you from Mangling one of the [boom] results it adds into a [kaboom], or other similar shenanigans, not to prevent you from modifying the dice you canceled.

R3 doesn't need similar language, because it's not adding a result (which by rule is another die, which could then be modified), it's assigning a token.

Now, you CAN use R3 and AccC on an E-wing to cancel an eyeball, get an evade, and then correct to 2 hits, but its a lot of points and valuable slots for a very rare occurrence that won't hit anything anyway.

Now, you CAN use R3 and AccC on an E-wing to cancel an eyeball, get an evade, and then correct to 2 hits, but its a lot of points and valuable slots for a very rare occurrence that won't hit anything anyway.

Once you cancel that die with R3, that die doesn't exist anymore. You can't then reroll it with a target lock because there is no die there to reroll.

If R3 told you to change an <eye> to a <blank>, then you'd be able to target lock the blank, because there's still a die there. But cancelling the die is different - it takes the die off the table entirely.

Now, you CAN use R3 and AccC on an E-wing to cancel an eyeball, get an evade, and then correct to 2 hits, but its a lot of points and valuable slots for a very rare occurrence that won't hit anything anyway.

And on the only astromech-capable ship that already has the Evade action.

Indeed. They don't really gel.

Accuracy corrector say : When attacking, during the “Modify Attack Dice” step, you may cancel all of your dice results. Then, you may add 2 hit results to your roll. Your dice cannot be modified again during this attack.

R3 Astromech say : Once per round, when attacking with a primary weapon, you may cancel 1 of your focus results during the "Modify Attack Dice" step to assign 1 evade token to your ship.

I'm perhaps wrong, but R3 don't say that the die cannot be modified again during this attack.

So I imagine an X-wing rolling 3 or more dice, having a focus result that give me an evade, then rerolling that die and eventually others with the TL I had from my action.

I hope you see what I mean and you explain to me if I'm wrong.

It sounds like you're assuming the added evade token is added as another die that you can then use during the attack. Correct me if I'm wrong here.

R3 allows you to cancel one of your focus results and assign an evade token. The cancelled result is removed from the play area, so it's gone and can't be modified any further. The token that was assigned will allow you to add an evade result when you defend. It doesn't add a die result (or a die) that you can use when making an attack.

Now, you CAN use R3 and AccC on an E-wing to cancel an eyeball, get an evade, and then correct to 2 hits, but its a lot of points and valuable slots for a very rare occurrence that won't hit anything anyway.

And on the only astromech-capable ship that already has the Evade action.

Indeed. They don't really gel.

You're just assigning an Evade token, though, so you can take an Evade token for your normal action and get one from R3 in the same turn. Still too expensive for what it does, especially since you can only spend them one at a time, but I wanted to clarify for our listeners.

Cancelling a die removes it from the pool entirely, not making it a blank.