I know it can have extremespeed from a pokémon Box event with pickup, but how come it can't pass it through breeding to have a gluttony extremespeed zigzagoon?
No, it cannot have ExtremeSpeed and Gluttony.
ExtremeSpeed Zigzagoon's abilty is Pickup. So it can't Gluttony in that case.
And ExtremeSpeed is not an egg move for Zigzagoon, so it cannot be passed down.
How to change your username
How to add a user avatar
Why was my post hidden?
Flags vs Downvotes
Official PokemonDb League
Type a Pokemon name, type, move or ability to see instant results.