Aggron

Aggron-Mega sits at rank 115 with just 0.38% usage in the high-ladder (1760) bracket, firmly in niche territory. Its Filter ability and massive Defense stat carve out a defensive role in a fast-paced metagame, but its low Speed and mono-defensive profile struggle in a format built around unlimited switching and momentum-driven play. High-ladder builders typically slot it as an anti-tempo surprise pick rather than a consistent core.

Playstyle：The standard build runs Impish or Careful with Defense- or Special Defense-maxed EVs, centered on the Iron Defense + Body Press + Rest + Sleep Talk core. Iron Defense stacks Defense to enormous levels, then Body Press converts that bulk directly into damage output. Filter reducing super-effective damage by 20% synergizes with sky-high Defense to let it tank hits that would fell other walls. Team-building articles frame it as a defensive complement to offensive cores like Charizard-Mega-Y, covering the latter's weaknesses while relying on its partner's offensive presence.

In Doubles, Aggron-Mega reaches 0.72% usage at rank 80 — still niche, but more viable than its Singles showing. The core moveset of Body Press, Protect, Heavy Slam, and Iron Defense suits the Doubles format well, where its Filter-boosted bulk can be exploited under team support. Its most common partner is Sinistcha (16.3%), paired with Incineroar and Sneasler, suggesting a structure built around field control that enables Aggron-Mega to leverage its Defense advantage.

Playstyle：Doubles builds favor Careful or Impish natures, centering on Body Press, Protect, Heavy Slam, and Iron Defense. Protect is essential for survival while partners set up. Heavy Slam's weight-based power suits Aggron-Mega's extreme mass, and Body Press converts accumulated Defense boosts into spread damage. Top partner Sinistcha (16.3%) provides Matcha Gotcha recovery and field control; Incineroar's Intimidate lowers the Special Attack threats that Aggron-Mega's modest Special Defense cannot easily absorb.

✅ Favorable matchups4

KingambitGarchompSylveonAerodactyl-Mega

⚠️ Unfavorable matchups3

GarchompIncineroarCharizard-Mega-Y

Aggron is essentially unfit for Singles with only 0.07% usage at 1760+ (rank 185). Its 4x weaknesses to both Fighting and Ground are catastrophically exploitable in a 6v3 pick format—opponents can freely include a Lucario or Krookodile to OHKO it on switch-in. Its Steel/Rock passive bulk requires safe switch-in opportunities that the fast-paced Singles format rarely provides, and its base 50 Speed means it cannot threaten anything without support. Unlike Mega Aggron, which gains pure Steel typing to remove its Rock weakness, the base form has no such compensation.

Aggron has 0% usage in Doubles at the 1760+ ladder, effectively absent from competitive Doubles play. The 6v4 Double Battle format demands speed and immediate burst power that Aggron fundamentally cannot provide—its base 50 Speed ensures it almost always moves last, leaving it unable to act before taking damage. Its 4x Fighting and Ground weaknesses are amplified in Doubles by spread moves (Earthquake hits the partner too unless Aggron is floating) and combination attacks. The very limited Doubles data that exists comes entirely from low-ladder experimentation.