Nin, the Pain Artist
UR; (R); 1/1
Legendary Creature - Vedalken Wizard
XUR, T: Nin, the Pain Artist deals X damage to target creature. That creature's controller draws X cards.
Archangel of Strife
5WW; (R); 6/6
Creature - Angel
As Archangel of Strife enters the battlefield, each player chooses war or peace; Creatures controlled by players who chose war get +3/+0; Creatures controlled by players who chose peace get +0/+3.
Personally, I really like the first one; makes for interesting politics, and is flavorful and fun. But the second kind of bores me. It would MAYBE be fun like once.