Two short noms:
Iron Boulder :iron_boulder:
I agree with Raffe's take on this mon, especially with the Sub set. I've tested it out on ladder, and it is an absolutely fantastic cleaner and game ender. Sub makes it so much more consistent at using Booster Energy's speed boost to mop up weakened offensive teams. Boulder is one of those mons that often grabs 2HKOs on faster targets, so it either needs a power boost or an extra turn. SD lets it boost its power, but with so much offensive priority, it often struggles. Sub takes the latter role while enabling Boulder to dodge prio, beating all relevant users (CC on Gambit, EQ for Bolt, Cleave for DNite, etc.) behind it. While this mon struggles to pick coverage, namely choosing between CC and EQ for Darks and Ghold, it still does a number on offense. In all, I nom Boulder to around low B tier as a useful and unique form of speed control and as an antioffense mon.
Empoleon :empoleon:
I have also tested this mon out on ladder, and have similar reasoning to my previous discussion thread post for this nom. That is, Empoleon is a very unique form of role compression for teams. It serves primarily as a flexible defensive pillar, shutting down Wake and Fairies like Prim and Clef along with helping against other attackers like Darkrai. As a Steel carrying both Knock and Roost, this mon seriously annoys certain variants of Gliscor and Glowking. Speaking of Gliscor, since Empo has the option of Ice Beam/Surf, with the right items (Balloon, Shuca, etc.) it trades very well into the many Grounds in the tier. It can even pivot with Flip and also punish Defog, arguably even more than Ghold can with Competitive as an ability. I would say that due to severe 4MSS and item paralysis, Empoleon should be placed at around low B- to the top of C+ as a unique defensive choice for bulkier offenses and balance.