Mega Aggron

Setup Wall

steel

doubles

Aggronite

ABILITY: FILTER

Body Press

Iron Defense

Heavy Slam

Protect

NATURE: Relaxed

HP

32

ATK

0

DEF

21

SpA

0

SpD

13

SPE

0

Mega Aggron's Defense can reach nearly 300 without full investment. Filter reduces super-effective damage, making it extremely hard to remove. Iron Defense + Body Press is the primary win condition, with minimal speed making it viable in Trick Room as well.