>>58164829
I've been doing a similar run in Alpha Sapphire for a while now. I beat the game with 1st stage mons and a strict ruleset and I've kept grinding the E4 to see which mons can beat the game.
People are giving good advice and nice comments (though it's a slow thread). This is the right place imo for your adventure.
Aron and Sandile are absolutely in the top 15 Pokemon I've had this far <3