Its really annoying that if you press your combo too fast, one of your abilities is not gonna be used..
Smartcast. That will fix your issue.
I never have that issue, I play malz quite a bit. Maybe it's just more of a feel you have to play him for longer to execute every time. Just play a few more matches, you'll have it.
A lot of skills don't cast instantly. Smartcast can kind've mess with your perception of how your champion should be casting.
you need to learn his animations and the time it takes to cast each one quickly but accurately
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