Budget Alternatives to Boon of the Spirit Realm

Harvestguard Alseids $0.04 2W · Nymph Constellation — Whenever this creature or another enchantment you control enters, prevent all dam... Dreadbringer Lampads $0.06 4B · Nymph Constellation — Whenever this creature or another enchantment you control enters, target creature... Humbler of Mortals $0.09 4GG · Elemental Constellation — Whenever this creature or another enchantment you control enters, creatures you c... Strength from the Fallen $0.10 1G · Enchantment Constellation — Whenever this enchantment or another enchantment you control enters, target creat... Call for Unity $0.16 3WW · Enchantment Revolt — At the beginning of your end step, if a permanent left the battlefield under your contro... Forgeborn Oreads $0.17 2RR · Nymph Constellation — Whenever this creature or another enchantment you control enters, this creature d... Oath of the Ancient Wood $0.19 2G · Enchantment Whenever this enchantment or another enchantment you control enters, you may put a +1/+1 counter ... Whitewater Naiads $0.21 3UU · Nymph Constellation — Whenever this creature or another enchantment you control enters, target creature... Doomwake Giant $0.25 4B · Giant Constellation — Whenever this creature or another enchantment you control enters, creatures your ... Thoughtrender Lamia $0.28 4BB · Lamia Constellation — Whenever this creature or another enchantment you control enters, each opponent d... Agent of Erebos $0.29 3B · Zombie Constellation — Whenever this creature or another enchantment you control enters, exile target pl... Heavenly Blademaster $0.30 5W · Angel Flying, double strike Eidolon of Astral Winds $0.32 2W · Spirit Vigilance Skybind $0.34 3WW · Enchantment Constellation — Whenever this enchantment or another enchantment you control enters, exile target... Underworld Coinsmith $0.45 WB · Human Cleric Constellation — Whenever this creature or another enchantment you control enters, you gain 1 life. Intrepid Adversary $0.52 1W · Human Scout Lifelink Kyler, Sigardian Emissary $0.59 3GW · Human Cleric Whenever another Human you control enters, put a +1/+1 counter on Kyler. Cacophony Unleashed $1.29 5BB · Enchantment When this enchantment enters, if you cast it, destroy all nonenchantment creatures.