Here's a slightly more powerful version of Enigma Drake, and slightly more expensive as well. But it doesn't make it any less attractive. On the contrary, Crackling Drake will be an awesome addition to any of your Izzet or Grixis builds.
There won't be too many spells in exile while playing Limited, but the fact that it draws you a card is just fantastic. It also synergizes perfectly with Jump-start ability that lets you put more spells into your graveyard, and thus giving it more power.