Headband x Trainwreck. Headwrecker is a sativa dominant hybrid strain created through crossing the infamous Chemdawg X Sour Diesel strains. If you're looking for a super heady high that will kill any mental aches and pains, you've found it. Headwrecker is one for the ages, with spacey effects that will leave you feeling blissfully unfocused for hours on end. The Headwrecker high smashes into your brain mere minutes after your final exhale, leaving you feeling totally dazed and spacey without a care in the world. As your mind expands through this unfocused state of happiness, you'll begin to feel an increase in visual stimulation, adding a touch of creative energy to your totally dazed and confused state.