Read this: [Guide] IK HOTA (Season 21)
And from looking at your profile it looks like you have mixed pieces of IK and Raekor like a charge barb would. So if you want to do full IK HOTA then read the guide above but if you want to do charge then read this: [GUIDE] VileCharge IK6.RK4 - #19 by Cendiesel-1951