Arkian
this is the state of grace
I wanted to mention it, but PK Gaming was against it as most Dark-types are going to be hitting unboosted Sigilyph hard before it burns them. Houndoom is also very rare in UU. I get your point though.Houndoom deserves a special mention as the only perfect counter to the boosting set since it's immune to both burn and Stored Power.
Other dark types don't really appreciate being burned on the switch.