But, it is a Wolf, which could be relevant when Innistrad arrives in a couple months, and the enchantment does so much else that you can afford a less exciting creature
UR Ultra Rare CR COLLECTOR'S RARE Phoenix Gearblade X SPELL Equip Equip only to a Warrior or FIRE monster
And, sadly, most support for Spirit Monsters is aimed at bypassing their unique mechanic rather than supporting the mechanic
Arcane Proxy Arcane Savant Blue Mage's Cane Capricious Hellraiser Demilich Elite Arcanist Exit Through the Grift Shop Eye of the Storm Flawless Forgery Founding the Third Path Garth One-Eye God-Eternal Kefnet Isochron Scepter Jacob Frye Jund 'Em Out (playtest) Kaervek, the Punisher Maelstrom Archangel Avatar Magar of the Magic Strings Mizzix's Mastery Mizzix's Mastery Myra the Magnificent Mysterious Stranger Narset, Enlightened Exile Nashi, Moon's Legacy Panoptic Mirror Psionic Ritual Pyromancy 101 (playtest) Reenact the Crime Renegade Bull Reversal of Fortune Roving Actuator Saruman of Many Colors Shiko, Paragon of the Way Signature Spells Soundwave, Sonic Spy Spellbinder Spellweaver Helix Spellweaver Volute Surge to Victory Wildfire Devils Wizard's Spellbook Wondrous Crucible
For example, if you control an Omnath, Locus of Creation and make a nonlegendary copy of it with Irenicus's Vile Duplication, you can use regular copy effects on the new token to skirt the legend rule