Budget Alternatives to Bristly Bill, Spine Sower

Dueling Coach $0.06 3W · Human Monk When this creature enters, put a +1/+1 counter on target creature. Sage of the Fang $0.07 2G · Human Druid When this creature enters, put a +1/+1 counter on target creature. Dragonsguard Elite $0.15 1G · Human Druid Magecraft — Whenever you cast or copy an instant or sorcery spell, put a +1/+1 counter on this cr... Floral Evoker $0.26 2G · Snake Druid Landfall — Whenever a land you control enters, put a +1/+1 counter on this creature. Ride the Shoopuf $0.29 1G · Enchantment Landfall — Whenever a land you control enters, put a +1/+1 counter on target creature you control. Invigorating Surge $0.30 2G · Instant Put a +1/+1 counter on target creature you control, then double the number of +1/+1 counters on t... Southern Air Temple $0.31 3W · Shrine When Southern Air Temple enters, put X +1/+1 counters on each creature you control, where X is th... Roaring Earth $0.33 1G · Enchantment Landfall — Whenever a land you control enters, put a +1/+1 counter on target creature or Vehicle ... Fangs of Kalonia $0.37 1G · Sorcery Put a +1/+1 counter on target creature you control, then double the number of +1/+1 counters on e... Omnath, Locus of the Roil $0.38 1GUR · Elemental When Omnath enters, it deals damage to any target equal to the number of Elementals you control. Visions of Dominance $0.76 2G · Sorcery Put a +1/+1 counter on target creature, then double the number of +1/+1 counters on it. Retreat to Kazandu $1.73 2G · Enchantment Landfall — Whenever a land you control enters, choose one —