Budget Alternatives to Harbinger of Night

Consuming Fervor $0.06 R · Aura Enchant creature Pallid Mycoderm $0.06 3W · Fungus At the beginning of your upkeep, put a spore counter on this creature. Magmaroth $0.12 3R · Elemental At the beginning of your upkeep, put a -1/-1 counter on this creature. Biting Tether $0.21 4U · Aura Enchant creature Sporesower Thallid $0.27 2GG · Fungus At the beginning of your upkeep, put a spore counter on each Fungus you control. Katsumasa, the Animator $0.32 2UU · Moonfolk Artificer Flying Midnight Banshee $0.36 3BBB · Spirit Wither Pompeii $0.41 Earth When you planeswalk to Pompeii and at the beginning of your upkeep, put an eruption counter on it. Serrated Arrows $0.58 4 · Artifact This artifact enters with three arrowhead counters on it. Necroplasm $0.76 1BB · Ooze At the beginning of your upkeep, put a +1/+1 counter on this creature. Aku Djinn $0.96 3BB · Djinn Trample Heartmender $0.97 2G/WG/W · Elemental At the beginning of your upkeep, remove a -1/-1 counter from each creature you control. Corrosion $1.13 1BR · Enchantment Cumulative upkeep {1} Bomb Squad $1.18 3R · Dwarf {T}: Put a fuse counter on target creature. Arcbound Overseer $1.76 8 · Golem At the beginning of your upkeep, put a +1/+1 counter on each creature you control with modular.