Exalted Angel is her name, and she is undoubtably one of the best killas on the block. Imagine a sword of fire and ice on her, or Sword of shadow and light.

No she might not stack up to tog, but, remember she flies! and gaining 4 life a round makes tog a whole lot smaller! I have found in testing, she annahilate the Big O, and vs Burn, she draws 2 burn spells, setting them up for the opps, I forgot, I have Force of will to stop one of those! Undoubtably, she is one of the finest creatures I have ever played with hands down, coupled with mana drain, she is very easy to layed down too! an in type 1 its very possible to see her turn 1 or 2 also.
I respect her because I realize the power of control to keep one creature on the board and just annahilate you with it. I might even consider sticking the sword of shadow and light side to stop the cheese.

In decks that have life loss spells like necro, yawg. bargain, and skeletal scrying, she is a welcome addition, but more importantly in control she adds that one element it needs to make it aggro/control. Aggro because 4 dmg per turn is nothing to sneeze at, control because it's trading life gain to ignore your threats. I actually fought against the big O and laughed at how my angel helped me ignore his massive creatures on the board losing 2-4 life a round vs 6-8. I acutally found that she ultimately helps control live longer, and allows you to play cards like Moat again, god I love that card.
The list goes on and on. I haven't seen a better control creature since Tog. Fear the Mighty Angel I say.
