Isa Simple said:Azumarill pretty much just doubles up a bunch of roles to maintain a strong team without any over reliance on keeping a certain mon alive. Its strong priority makes it a strong revenge killer taking pressure off of our faster mons. Its high unboosted power reduces the need to create set up opportunities. It helps Forretress checking Mamo, Keldeo, Weavile, Latios, Rain, and Sand. It helps Thundurus with Zard-X. It acts as a second Mega Sableye killer alongside Mega Lopunny, reducing the risk of bunny being burned. Plus it even acts as a secondary Tankchomp killer alongside Thundurus which again helpful for Lopunny. But most importantly, Azumarill adds a much appreciated Fire resist to the team.
Isa Simple said:Yeah, there isn't an awful lot that Jirachi and Gliscor do for the team that Scarfed Landorus-T couldn't do by itself. Jirachi brought a nice pivot with a bit of bulk and U-Turn, whilst being able to revenge hyper fast Megas like Aero, Alakazam, and Beedrill. Gliscor beat Sand and brought a Knock Off user and T-Wave soaker. Though all of these traits listed thus far can be taken up by Scarf Lando-T, so it makes sense to compress those two and bring in the dog. Lando-T also checks plenty of additional mons of its own, and importantly creates a far better Volt-Turn core with Forretress (Like, this is actually a really good Volt-Turn core which we should even consider building around again). We definitely gain a lot more than we lose imo, with the biggest gain of course being opening up a team slot to patch some holes.
Isa Simple said:Because of the move to replace Jirachi and Gliscor with Landorus, the most prominent thing we lost is our ability to check fairies (Bulky and not so much). To remedy this I think we should switch Forretress' spread to a Specially Defensive variant, allowing it to face Mega Gardevoir and Mega Diancie nicely, while still being able to take on everything it was initially put on the team for (It doesn't stop Kabutops anymore but it walls Kingdra instead which is probably better). The SpD spread is a bit weaker to Mamoswine and Keldeo, but it still handles them solidly, plus CB Azumaril lends a massive hand.
Also with the loss of Jirachi and Gliscor, now pretty much the only thing that can apply enough pressure to stop Mega Audino from setting up and sweeping is CB Azumarill. (Other bulky set-up sweepers like M-Scizor and Clefable are problematic as well.) But basically the team is already pretty well rounded - covering all the roles and checking all the threats necessary for Offence (aka Fast Electrics, Weavile, Bisharp, Latis, Rain, Sand, Lopunny, Talonflame, Torn-T, Keldeo, Azumaril, Zard-X, Malt, Mega Sab, and Tank Chomp.)