Is there any merit to running super luck as the pre-mega ability? With the increased crit chance it might see use for punishing a defensive stat booster as crits bypass boosts and Absol has 130 base attack which is super scary. I can see the use in Justified but the most common dark type attack is pursuit and even with resists, Absol is near enough dead even after taking a resisted hit before evolving. I have a shiny super luck one from chaining in Diamond and I guess I'm just trying to see if there's any merit to using it over a bred Justified one.
There is very, very little reason to use Absol at all pre-Mega, if you have the Mega Stone on it. It is
far slower, has much less power, and is susceptible to status moves. If you're trying to abuse the crit chance, you'd probably be better off working with a non-Mega Absol (who could carry a Scope Lens or Life Orb).
Mega-Evolving should really be the first thing Absol does if it is carrying the stone, so you would never get a chance to use Super Luck with an attack. However, there's a
chance that Justified might trigger if you predict a weak Dark Attack properly and switch into it (or predict a different Attack and switch in, only to get hit by a weak Dark Attack), so it becomes the better Ability for it to carry, simply because it's really the only one which has the
possibility to activate on a Mega-set. Some Pokémon may work for playing mind-games with, and leaving them in their base form for a turn or two, but Absol is not one of them. The critical chance is just not worth the trade off.
With crits already reduced to 1.5x damage, and Absol not having the Mega-form buff to its attack, you're not losing a lot of damage even with 100% crits anyway (and they're still not going to be super common, especially with no other crit boosts). Consistency of boosted damage, Speed from the Mega-form, and the defense (and aid in Sucker Punch prediction) it picks up with Mega just overwhelm the minor chance to tear through defensive buffs.
Also, the OP hasn't been updated, but have the Base Stats for Mega-Absol been confirmed? Bulbapedia lists it as 65 / 150 / 60 / 115 / 60 / 115, but I'm wondering if that's accurate. If so, and if we are going for a mixed attacker, would it be better for a Nature that lowers Def, SpD, or does it matter, since Absol is so frail anyway?
