Yep, I agree with THORIN. Videos by WWM are amazing (https://www.youtube.com/user/PaulWWM). I also advise you to watch videos by SLGAMING (https://www.youtube.com/channel/UCDKwQmR6sTpMijgzgkRFcyA).
One thing to keep in mind is that the battle mechanics are always changing with every update and there are so many parameters. many of the knowledge boosts values are unknown until you get them and they grow non linearly. Plus all the standard boosts. This leads to the situation here you only look for lopsided confrontations. So you don’t get crushed.