Can't really figure out what your deck is trying to do. I can understand if you're trying to make this budget, but I don't understand Vinelasher. It requires a heavy investment to be good and it dies to all the removal in Modern. If you're not going budget, I would replace the Lashers with Goyfs. If you're trying to make it budget replace them with
Grim Flayer. I don't think you need the 3 Damnations mainboard, unless your meta is heavily flooded with creature decks. I like the
Life from the Loam, but I would run a full 4 of
Ghost Quarter or maybe a 2
Ghost Quarter 2
Tectonic Edge split. Recurring land disruption is amazing. I don't like
Worm Harvest at all. Once again, it's really expensive and it requires a pretty big investment to be good. I would say you make those Siege Rhinos. I also don't like Dark Blast at all. You're not a dredge deck. I would do this. -1
Damnation, -4 Dark Blast, -1 Garruk, -4 Vinelasher, -2
Worm Harvest, -4 Crime
Punishment, -2 Caustic. +4
Lingering Souls, +4
Siege Rhino, +4 Goyf/
Grim Flayer, +4
Path to Exile, +2
Liliana of the Veil