Mastery, help

Aggresssor

Guys, can someone help me with mastery ? for max damage and max crit rate. I have 5* 4/45 Hyperion (main champion) with very low, low crite rate chance. Only 381 chance to crit (16.4%)
I have 56 points

TheSquish671

1 point in lesser precision and cruelty and max out precision and cruelty.