Nah this gen is going to have nigh-constant defog users I feel. Latis don't get creeped at all because entire gen is slow, Starmie is still spectacular due to speed/spin, Skarm/manatine/Zapdos/Water|fairy Tapu all have defog, Excadrill still in meta and some situational spinners coming out, I don't see hazards sticking long. Too many options to clear them and you almost can fit in two hazard clears on stall without an issue. +Gengar gets a hidden buff vs this in the fact that he now destroys toxic spikes. (I know people are counting that as a nerf, but I'm not sure what exactly was missing a ko on heatran before anyways. Landorus-T was probably going to kill tran with stone edge just as fast as EQ if he survived the hit, Excadrill was already mold breaker or KO with Sand Rush iron head).
I also don't think mericiless is that good anyways. Like you have this cute looking sniper kingdra discount mon, and kingdra w/sniper isn't even that good to begin with. You'd need more offenses because I'm guessing you're STILL weaker than Venusaur-M's bulky offense set even with crit venoshock and definitely weaker than Gengar, both which sport higher speed and venu who doesn't have bad defenses.