User blog comment:Phoenix God 9842/7 Star Arius Idea/@comment-26085924-20160202063603/@comment-26917552-20160202064648

The extra skill is 10% boost to HP to all alies that will last for 2 turns. For example if a unit were to have 8,000 HP the extra skill will give that unit 8,800 HP for 2 turns but since his SBB is unlimited it will techincally last forever if you use his BB/SBB at least every 2 turns.