User blog comment:Crimson Storm Mich/Future Units Preview v2/@comment-26944381-20161104133341/@comment-27362456-20161105010727

Well then again Azure, Alim would most likely add on effects to Kira and Feeva since they were the first RS batch of 7* units.

If you look to Zellha all she had was chance to inflict Weakness & Injury. Now she has status infliction, stat reduction and Elemental damage.

Quaid only had add 4 base elements to attack on SBB and Triple normal hits on UBB. Now he has every ability his teammates had from Colt's Crit rate buff to Claire's Spark buff to Ivris' healing abilities.

Considering this Alim would more than likely add more abilities. Sure they'll have competition, but there's those who don't have newer units making these will be extremely valuable to them.

I myself only have Avant for Crit yet I have Vern, Zero, Eze, Kulyuk, Izuna and soon Tazer for Spark. Plus some people just like seeing their favourite characters revived. My Sirius has other units with stronger buffs than his, but I use him anyway cuz he's one of my favorites.