User blog comment:Citrusacid/Help in decision making/@comment-26832517-20160116021446/@comment-27360323-20160116131158

He's right, if maybe you don't know, you can choose your own unit for the Helper in Frontier Gate. But still, you can only have 1 Dandelga for 1 Avant. But I think Blighted Seal will do, I don't really know Avant much, don't have him XD

Krantz is indeed good, but if you already have good support(healer) in your squad, putting Dolk in would be wiser, better Def boost, same removal skill on BB, and Negate stat-down on SBB. Also Dolk is absolute tanker, because he have no fear against Fire XD (you know what I mean? his ES) Use Krantz only when you need to the Light/Dark modifier.