Board Thread:General Discussion/@comment-33784676-20171127214612/@comment-32271305-20171127221411

Damage mitigation is usually better, but LRs have very high stats, so they tank as well (and they give your team more HP as a whole). Especially LR Goku Black, who raises his DEF by 30% (for 6 turns) after a super attack. And TEQ Golden Frieza, who would likely be on the same team as LR Goku Black, also has damage mitigation (70%, even higher than Super 17's). Plus, LR Goku Black has a higher ATK than Super 17, so in the end he's much better.

I don't have any of those two, but I once tried doing Boss Rush 2 (the long one, at Super 3 difficulty) with a Super Buu on my Extreme PHY team, who would heal for at least +10% every three turns when linked with Cooler (thanks to the Metamorphosis link), and it was enough to beat all 14 bosses without using a single item.