Board Thread:News and Announcements in game/@comment-27996636-20171226005937/@comment-27996636-20180110212627

Most of these "summonable" LR's have farmable super attacks to 10, then you would definetly use elder kais to get them to level 20 as any dupes are so rare that using a dupe you got would be more valuable in the potential system.

So Summon LR's = Farm to 10 and elder kais from 10 to 20

Gift/Free/Drop/Purchaseable LR's you have the option to get as many as you like so can use another to get to sa10 and train them together for sa20 no problem (apart from the usual immense grind)(or time restricted like LR Piccolo)