Who should I strengthen?

Serious battles are legitimate content that anyone can enjoy. You don't need to worry about being a nuisance. It looks like you've already trained many characters. In the current meta, let's prioritize raising versatile characters to efficiently build up your strength.

Star Nova, maybe?

Meeple gas

Maybe Ash, Pearl, and Stu! If you can get the buffy set, Shade and Gas would be good too!

I think Star Nova and 8-Bit should be prioritized for upgrades!

If you can also get the buffs, I think Gas and Shade would be fine.

It's good to raise a character that's easy to use. Let's be friends if you want.

I think Gene, Penny, Carl, Rico, and others would be good.

For now, let's focus on raising 'Sam,' the idol of Brawl Stars and a dream character that allows you to train all sorts of abilities. Sam is a fun and cute character where you can practice managing health, range, and even drawing aggro. Why not give him a try?

I think Glyphs and Jade are good right now.

I think Meeples are good too!

It's easy to pick even in serious battles, so I recommend raising it.

Well, and Shade! Shade! Shade!!!

Long-range characters: Brock or Colette Mid-range characters: Griff or Emz Close-range characters: Nani or Edgar Thrower characters: Tick or Dynamike It would be good to have characters that can cross water separately from these (like Bea or Gene). Serious battles might be difficult due to the lack of high-power long-range characters?

Crow is strong!

I think it's best to raise the one that's easiest for you to use.

Shade is currently the best, but since it's getting nerfed, I think Glyph will be the best.

Edgar 2000 is easy~

I recommend Gas and Star Nova.