It's very strong and beloved and became the default Simic Landfall for many players and have never left it
IV seems to give this card a little more oomph than Chandra, the Firebrand did, and Im pretty sure bloodrushing a Ghor-Clan Rampager on a Phoenix is one of the dictionary definitions of a BIG GAME (TM)
You can stick with Edgar Markov and build an aggressive Vampire deck by adding more lords, Shared Animosity, and other aggressive tribal-matters cards, or you can go with Licia, Sanguine Tribune and build lifegain combo with Sanguine Bond, Exquisite Blood, Defiant Bloodlord, and the like
Outlaws of Thunder Junction Product Lineup Play Boosters Perfect for Limited Play and fun to open, with at least 1 foil card and the possibility of multiple Rare cards in every pack
For most Cubes though, I love Walking Ballista as a solid card that can go in any deck that offers relevant support to artifact decks and stuff like delirium
Those poor guys