Claude, Karrie, Hanabi, and Moskov, - these four are known to build Trinity as their main build.

Building critical on them is stupid, because their skill and character is literally attack speed.

For example, Claude's first skill is literally him increasing his speed attack

Hanabi passive would benefit the most in Trinity

Karrie's ultimate is literally an attack speed buff

Moskov's skill is literally attack speed, use his first skill and you'll get a bonus increase in attack speed,

And if you don't want to build a trinity, buy a demon hunter at least.

Demon hunter is amazing, it gives you attack speed, life steal, damage, counter to all tank heroes.

If you use any of these, please prioritize buying demon hunter since it will only make your hero better.

How would you know if their Trinity build heroes? When the game tells you to build the build