Can the Pokemon creators change the strengths and weaknesses for any Pokemon types anytime they want? - Quora

Pokémon type chart: strengths and weaknesses

Pokemon Types - Pokemon Red, Blue and Yellow Guide - IGN

Easy Ways To Remember Pokémon Weaknesses In X And Y

LogicInbound on X: This Pokémon Go Chart Shows You Which Pokémon Types Are Strong or Weak Against Yours / X

Easy read super effective type chart. Just the attacks. : r/TheSilphRoad

Print this Pokemon X & Y weakness chart – Destructoid

Expanded Type Chart 5.0 by AdeptCharon on DeviantArt

Types, Pokemon Tower Defense Two Wiki

OC]I have trouble interpreting most of the strength/weakness charts that I come across, so I made one that makes more sense to me. It focuses on what works best offensively and defensively

For those trying to remember Pokemon types and what is effective, this chart pretty much sums it up