Board Thread:Game Discussion/@comment-24034828-20131026132006/@comment-5612420-20140105100659

tl:dr - fuse any 4 stars together with one of them having fire as an element.

For higher probabilities of getting it, fuse mono element 4 star armors. It reduces the possible outcomes.

Blazeborne isn't as strong as other fusable epics because it's maxed stats are low, and it doesn't benefit from secondary guild element boost. Aegis of Sky Majesty and Forgestone are better alternatives.