Another day, another R.F.C. leak. This time, Smoke DZA and Den10 work as a duo on the pro swag anti-schwag anthem “Royal (Burn).” With a slightly unorthodox take on the horn sample that kicked off the B.X. classic “Déjà Vu,” 10 and DZA praise their favorite lush, green, plant at a very appropriate time on the calendar. Spring ain’t the only thing in the air.