While getting benefits from creatures dying is the default Orzhov strategy, as seen with Elenda, the Dusk Rose and Teysa Karlov, even these legendary creatures go above and beyond to either support creature tokens directly or develop a powerhouse creature that can neither be left unchecked nor allowed to die
Themes: Horror tribal, milling opponents, and stealing their best creatures
This said, Vengevine was printed in Rise of the Eldrazi , all the way back in 2010, but no one was playing Dredgevine in Modern, so what happened in 2012 to push Dredgevine to the forefront of the format
At level 1, Gossips Talent lets you surveil 1 anytime a creature you control enters the battlefield
Aim for a single-EX deck (so no Charizard-Moltres or Arceus-Dialga) and get the second copy as soon as possible to maximise the chances of getting one in the starting hand