Talk:Light Rift Dragon/@comment-26055095-20131213231612/@comment-11437884-20131214184140

The pair must contain Light and Dark elements.

If you have at least one Light Rift or Dark Rift, the smallest fail is Light/Dark Rift + Water.

If you don't have any of them, the smallest fail is Cave + Glass (or any combination containing Light, Dark and Earth elements).