Opening with Unicorn and Black metal (or any card that can search them) will give you a triple flare metal combo.
Then follow up with dragoon.
Opening with those two cards plus a level 7 extender (Tearlaments, Malefic, Meteor, Riseheart) will get you triple Flare Metal+Fullmetal on board.
As good/consistent as I can get red eyes.
(replace the 6 handtrap slots with your own flavour)