Just replace the aura with a projectile might be better
Here are the stats
Cd: 18 seconds
Aim type: cursor
Animation: summons a stretched ball shape with one hand, then fires it out (like a bullet) with a recoil to the arm
Windup: 0.8 second
Size: 1x1x3 stud³
Damage: 10-20 damage (uncertain)
Transverse speed: 35 stud/sec
On hit effect: deals dmg + turns victim into gold for 1 second
The new move will make combo be more constant ,as worthing its price (150k punches)