29 cards where the card types include “spirit” and the colors ≤ BG and the power <= 1 and the mana value <= 2

Ashen-Skin Zubera (Champions of Kamigawa #101)
Baleful Eidolon (Theros #78)
Bile Urchin (Betrayers of Kamigawa #61)
Child of Thorns (Betrayers of Kamigawa #123)
Deathknell Kami (Saviors of Kamigawa #65)
Disowned Ancestor (Khans of Tarkir #70)
Dripping-Tongue Zubera (Champions of Kamigawa #206)
Generous Visitor (Kamigawa: Neon Dynasty #185)
Ghost Hounds (Homelands #49)
Ghost-Lit Stalker (Duel Decks Anthology: Garruk vs. Liliana #34)
Hana Kami (Modern Masters #147)
Hateful Eidolon (Theros Beyond Death #101)
Kami of Bamboo Groves (Alchemy: Kamigawa #24)
Nether Shadow (Masters Edition #77)
Nether Traitor (Time Spiral Remastered #127)
Omarthis, Ghostfire Initiate (Commander Masters #708)
Permeating Mass (Eldritch Moon #165)
Petalmane Baku (Betrayers of Kamigawa #139)
Plagued Rusalka (Jumpstart #268)
Reezug, the Bonecobbler (Alchemy: Dominaria #10)
Shinen of Life's Roar (Archenemy #69)
Soilshaper (Champions of Kamigawa #243)
Souls of the Lost (The Lost Caverns of Ixalan #121)
Starved Rusalka (Guildpact #97)
Tormented Soul (Planechase Anthology #38)
Traproot Kami (Betrayers of Kamigawa #147)
Ugin's Conjurant (War of the Spark #3)
Will-o'-the-Wisp (Masters 25 #115)
Willow Geist (Innistrad: Midnight Hunt #207)

The arc of my blade has carved a path of light to the end of these results.