I have finished many during the DC journey since day 1. Some of them are for ranking. I think the little cute honey cube would be recognized. Some of them were for fun, like killing highest raid boss by 3 star attacker, by no attacker team, or just using 3 member team.
Among all of those, the one I enjoyed most was slayer ranking 1 during Procel Ragna Raid, which I did it purely manual, no bots, no scripting. It was a 3 week raid, more challenging than a normal one. last one before unlimited refresh. I remember all the short sleep below 4.5hrs during that raid, and messages asking for spawns in Discord servers.
I would like to thank all friends spawning bosses from all over the world on discord server DCG, DCI and 時逆. Without the great help from you, I cannot get this job done. I would like to share the proud to all of you.
May the Cube bless you all!
in fact life link does "heal 2 lowest HP units with that buff". if there are less than 2 with that buff, ie echo's case, it just heal 1.
You can see the healing effect much clearer by Neptune's drive which buffs 5. One unit damaged and 2 lowest HP units among the 5 got healed.
I would suggest Lifelink(Convert x % of damage taken to recover up to 2 lowest HP allies with Lifelink)