My izzet deck will run {Hypersonic dragon} and {worldfire!} ;D
Splash white for {sudden disappearance}? Or even {fiend hunter} to hold something for the last damage?
In standard unless you can get out worldfire quick its not really worth it that would be something for edh but its banned
I mean ppl can kill you in less than nine turns
{Goblin electromancer} {Arcane overload} + counters and fog bank is my plan ;D
Not super competative though :P
Use in an elf supermana deck