Like a Voja, Jodah, or MTG Sliver deck, your best bet against Vren is going to be a board wipe
This is reflected in the decks where The Shire sees play
Creatures (26) 4 Llanowar Elves 3 Doomed Dissenter 2 Thrashing Brontodon 1 Ravenous Chupacabra 1 World Shaper 1 Multani, Yavimaya's Avatar 1 Bone Dragon 4 Stitcher's Supplier 1 Izoni, Thousand-Eyed 1 Golgari Findbroker 4 Glowspore Shaman 1 Kraul Harpooner 2 Plaguecrafter Planeswalkers (3) Lands (24) Spells (7) The early game here is designed to get some bodies onto the battlefield that your opponent wont want to kill and that youll be happy to sacrifice to enable your Journey to Eternity / Vicious Offering / Vraska, Golgari Queen follow-up
To say it bluntly, Standard needs change right now
Also read: Best Darkness-type deck in Pokemon TCG Pocket (Anti-Mewtwo ex deck) Understanding the sleep mechanics in Pokemon TCG Pocket The Sleep status in Pokemon TCG Pocket immobilizes a Pokemon, preventing it from attacking, using abilities, or retreating