Budget Alternatives to Mephidross Vampire

Spiritmonger $0.07 3BG · Beast Whenever this creature deals damage to a creature, put a +1/+1 counter on this creature. Coiling Stalker $0.08 1G · Snake Ninja Ninjutsu {1}{G} Falkenrath Exterminator $0.15 1R · Vampire Archer Whenever this creature deals combat damage to a player, put a +1/+1 counter on it. Havengul Vampire $0.18 3R · Vampire Whenever this creature deals combat damage to a player, put a +1/+1 counter on it. Vein Drinker $0.26 4BB · Vampire Flying Vampiric Dragon $0.27 6BR · Vampire Dragon Flying Overclocked Electromancer $0.27 2R · Lizard Wizard At the beginning of combat on your turn, you may pay {E}{E}{E}. Scurry of Squirrels $0.29 2G · Squirrel Scout Myriad, myriad Stensia $0.30 Innistrad Whenever a creature deals damage to one or more players for the first time each turn, put a +1/+1... Thunderwolf Cavalry $0.33 4W · Astartes Warrior First strike Dreadhorde Butcher $0.33 BR · Zombie Warrior Haste Symbiote Spider-Man $0.33 2U/B · Symbiote Spider Hero Whenever this creature deals combat damage to a player, look at that many cards from the top of y... Lost in Memories $0.44 1R · Aura Flash Thundering Raiju $0.46 2RR · Spirit Haste Spawn of Mayhem $0.49 2BB · Demon Spectacle {1}{B}{B}