It does 200 damage for a mere three Fire Energy, and that can be increased all the way up to 300 damage and gain Shred by attaching three extra Fires
Even in Vintage, the only place this card is available to play, it is restricted (you can only have one copy of it in your deck)
Aettir and Priwen would be the only other equipment I would target at this CMC
My favorite has to be another unique enchantment type: backgrounds
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Buy This Card Notes and Rules Information for Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel: If Sephiroth, Fabled SOLDIER and one or more other creatures die at the same time, its last ability will trigger for each of those other creatures
Some (but not all) of these LEGEND cards are worth 2 Prize Cards when Knocked Out, so be careful using them in your deck