So if your friend has all Legends Limited units, You can just go for a Lineage of Evil Team because all of them are basically Saiyan characters:
Core: Full Power Frieza, Golden Frieza and Chilled
Bench: Metal Cooler, FF Frieza -Yellow- and EX Captain Ginyu.
Good Luck xD.
Thanks a ton I was finally able to beat him after like months of him pulling tons of legends limited characters and me losing 24/7