User blog comment:Sonnytapman/F2P Blog- Raid/@comment-10373903-20150709070111/@comment-26186382-20150709213322

Note that this team doesn't exactly have a dedicated healer, because in Raid, you want constant Damage. So, you use Lucana BB every three turns, so you have the boosts, and use her SBB inbetween those turns. Stya is set as leader for the boost to HC drop rate, so it's pseudo healing, allowing Lucana to lower Att and Def more often.