17 cards where the card types include “ouphe” or the text includes “ouphe”

Aerie Ouphes (Eventide #65)
Bramblefort Fink (Throne of Eldraine #311)
Brown Ouphe (Mirrodin #115)
Collector Ouphe (Modern Horizons #158)
Dusk Urchins (Shadowmoor #65)
Fyndhorn Brownie (Classic Sixth Edition #231)
Gilder Bairn (Eventide #152)
Glimmer Bairn (Modern Horizons 2 #163)
Kitchen Finks (Ultimate Masters #216)
Knickknack Ouphe (Wilds of Eldraine Commander #18)
Niall Silvain (The Dark #82)
Ouphe Vandals (Fifth Dawn #90)
Pyknite (Ice Age #258)
Shelkin Brownie (Legends #204)
Spellwild Ouphe (Future Sight #151)
Toadstool Admirer (Wilds of Eldraine #192)
Troublemaker Ouphe (Wilds of Eldraine #194)

The message was clear to Sorin—time to search for something else.