Slight correction, Moody does no longer boost evasion in gen 8.Alright I'm gonna throw it out there and say it. I think Veil/Brightpowder should be banned.
On paper/statistically is it overpowered? No it is not at all. However it has the power to completely turn the tide of a battle with RNG especially when combined with Substitute.
Even more so I'd go on to say it is completely uncompetitive. I know there's RNG related things in battles, chances to be paralyzed, crit and so on. However, evasion boosting moves are already banned. Moody is mostly banned because of the chance of getting am evasion boost with sub or protect and then snowballing there.
Hell there is already precedent of banning veil in previous gens and besides chomp (who's already got another great ability.) No mon will really ever miss Veil.
So yeah ban it, end the rng fest that's Veil/brightpowder and let's move on with the metagame.
However this definitely is something that should be discussed, evasion boosting is inherently uncompetitive and can cause stupid snowball sweeps especially from the likes of Garchomp.