Budget Alternatives to Murktide Regent

Tome Shredder $0.07 2R · Wolf Haste Apex Hawks $0.10 2W · Bird Multikicker {1}{W} Chamber Sentry $0.14 X · Construct This creature enters with a +1/+1 counter on it for each color of mana spent to cast it. Bedlam Reveler $0.14 6RR · Devil Horror This spell costs {1} less to cast for each instant and sorcery card in your graveyard. Gatekeeper Gargoyle $0.16 6 · Gargoyle Flying Zombie Mob $0.18 2BB · Zombie This creature enters with a +1/+1 counter on it for each creature card in your graveyard. Embodiment of Agonies $0.31 1BB · Demon Flying, deathtouch Eddymurk Crab $0.32 5UU · Elemental Crab Flash Unbreathing Horde $0.32 2B · Zombie This creature enters with a +1/+1 counter on it for each other Zombie you control and each Zombie... Crystalline Crawler $0.35 4 · Construct Converge — This creature enters with a +1/+1 counter on it for each color of mana spent to cast it. Urborg Scavengers $0.35 2B · Spirit Whenever this creature enters or attacks, exile target card from a graveyard. Malanthrope $0.37 1GU · Tyranid Flying Clockwork Dragon $0.38 7 · Dragon Flying Skeleton Scavengers $0.53 2B · Skeleton This creature enters with a +1/+1 counter on it. Marketback Walker $0.59 XX · Construct This creature enters with X +1/+1 counters on it. Demilich $0.64 UUUU · Skeleton Wizard This spell costs {U} less to cast for each instant and sorcery spell you've cast this turn.