Deadlift 5-5-3-3-1-1-1 reps
Post loads to comments.
Scaling:
Choose loads that allow you to attempt a PR in the later sets. If you are not comfortable performing heavy deadlifts, add a few reps to each set and drill your mechanics, but try to expose yourself to a load that is relatively heavy for you.
Beginner option:
Deadlift 5-5-3-3-3-3-3 reps