For two mana, you get a 1/3 Lizard Rogue that deals damage to every opponent each time you bring a creature into play
Leyline of Resonance comes down for free, since it's a leyline in your starting hand
Verge Rangers does give you the ability to look at your top card but not to change it, and it only offers a little ramp in really specific situations
The remaining five legendary creatures are incredibly varied, but none scream value buy
It combines simple mechanics with powerful synergies, letting newcomers learn quickly while still competing at a high level
In addition, battlefield sweepers such as Damnation, Toxic Deluge, and their ilk also have no issue killing an entire battlefield full of protection from black creatures dead