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Greedent seems to be eating good given that berries heal based on max HP. All Gold with Fearow, Raticate, Butterfree, Pidgeot, Pidgey and Pidgeotto would give you
>+2 Attack
>+5 Def
>-8.5 Sp. Atk
>-5 Sp. Def
>+150 HP + 8% max HP from six whites
Could trade out one for Spearow's +2 Atk -5 Sp. Def as well.
Then you go for 4 Orange for the attack boost which can be Nidoqueen, Machamp, Primeape and either Mankey or Nidoking to get even more HP along with some little attack.
If you want be a total shitter then run Aeos Cookie along with your Attack Weight for even more HP gains. Absolute unit.
meta will probably be a full attack build in the end though