Part 1: deadlift warmup
Practice the movement. Focus on hip hinge and hamstring flexibility/mobility.
If you want to go heavier, do 3×5+ (last set is for max reps).
Then…
Deadlift 1/2/3/4/5/6/7/8
Wallballs 4/6/8/10/12/14/16/18
Option 1: 225/155
Option 2: 165/115
Option 1+: 255/175 or more; heavy wallball
Modify by starting the wallballs at 2 (2/4/6/8/10/12/14/16).