Prey Upon Green doesnt often get true removal, but it does get creature fight spells
Generally I view Bargain as more of the combo or big control card with Necro being better for agro or disruption decks
While its no Regrowth, you can get back a lot of key cards with it, including powerful engines like Smothering Tithe and Esper Sentinel
This card is nothing like Vindicate, it offers far less in the way of broad security and reliability and cannot be played in the same role
So what can be done about this

Creature 1 Cloud, Ex-SOLDIER 1 Tifa, Martial Artist 1 Cid, Freeflier Pilot 1 Elena, Turk Recruit 1 Heidegger, Shinra Executive 1 Helitrooper 1 Avalanche of Sector 7 1 Cait Sith, Fortune Teller 1 Summon: Kujata 1 Vincent, Vengeful Atoner 1 Yuffie, Materia Hunter 1 Bugenhagen, Wise Elder 1 Professor Hojo 1 Aerith, Last Ancient 1 Barret, Avalanche Leader 1 Red XIII, Proud Warrior 1 Sephiroth, Fallen Hero 1 Bastion Protector 1 Bronze Guardian 1 Puresteel Paladin 1 Hellkite Tyrant 1 Professional Face-Breaker 1 Armory Automaton 1 Zack Fair 1 Barret Wallace Artifact 1 Summoning Materia 1 Conformer Shuriken 1 Wrecking Ball Arm 1 Champion's Helm 1 Conqueror's Flail 1 Darksteel Plate 1 Inspiring Statuary 1 Sword of the Animist 1 Behemoth Sledge 1 Arcane Signet 1 Colossus Hammer 1 Explorer's Scope 1 Hero's Blade 1 Hero's Heirloom 1 Lightning Greaves 1 Mask of Memory 1 Skullclamp 1 Sol Ring 1 Trailblazer's Boots Enchantment 1 SOLDIER Military Program 1 Furious Rise Instant 1 Cloud's Limit Break 1 Ultimate Magic: Holy 1 Lifestream's Blessing 1 Clever Concealment 1 Chaos Warp 1 Dispatch Sorcery 1 Ultimate Magic: Meteor 1 Austere Command 1 Unfinished Business 1 Vanquish the Horde 1 Decimate 1 Secret Rendezvous 1 Vandalblast 1 Cultivate 1 Harmonize 1 Nature's Lore 1 Rampant Growth Land 1 Battlefield Forge 1 Bonders' Enclave 1 Brushland 1 Canopy Vista 1 Cinder Glade 1 Clifftop Retreat 1 Exotic Orchard 1 Fire-Lit Thicket 1 Fortified Village 1 Furycalm Snarl 1 Game Trail 1 Mossfire Valley 1 Rootbound Crag 1 Rugged Prairie 1 Scavenger Grounds 1 Slayers' Stronghold 1 Spire of Industry 1 Sungrass Prairie 1 Sunpetal Grove 1 Sunscorched Divide 1 Ash Barrens 1 Evolving Wilds 1 Jungle Shrine 1 Path of Ancestry 1 Radiant Grove 1 Sacred Peaks 1 Wooded Ridgeline 1 Command Tower 3 Mountain 3 Forest 3 Plains 3) Counter Blitz (GWU - FFX) The next MTG Final Fantasy Commander precons is built around another of my all-time favorites: Final Fantasy X
