Other than Worldspine Wurm all the best green targets fall in the pretty playable 7 CMC area
With social media purchases, make sure you always ask for references when working with someone new, and trust your gut (if a deal seems too good to be true, it probably is), and you should be fine
You get your Banishing Light effect for slightly more mana, but you also get a white mana rock to help make up the difference
Im always going to wait, Fatal Push a cost reducer if they cast one or Opt if they dont, and Thoughtseize after they spend another turn cantripping to maximize my odds of hitting a Gifts Ungiven or ruining their setup
It even has some decent graveyard hate attached to it as well
These two modes have their place and are good in different situations, but this is still super clunky