Board Thread:Card Unit Builds/@comment-30392240-20170421140828/@comment-26039274-20170421214854

In general, event cards are not worthy to be mirrored as there's a chance they will be reissued.

If you have a cool card that is an unleasher, e.g. Bright Amaterasu, and can get the UR from this month's ABB, they'd both go well with Coral as she is a cool salvo.

Otherwise, Shiroyagi is the better choice as Vei had pointed out.