The Reserved List was basically a promise to the community. In the mid-90s, the most expensive Magic cards were worth a couple hundred dollars
If one interests you, or feels like something the character could do, try to adapt it into a loyalty ability (or even a static!) Dont feel bad if you end up with a classic planeswalker design (5-mana, 4 or 5 starting loyalty, +1 card advantage, -2 to 3 removal, -7 or -8 ult that has the potential to win the game if you can back it up.) This design, and other often seen designs, are classics for a reason: They work
The Knuckles Gloves card adds Sonic art to The Reaver Cleaver card, and could hide a great Sonic reference
Archmage of Echoes Fae of Wishes Faerie Harbinger Faerie Seer Glamer Gifter Glamer Spinners Glen Elendra Archmage Glen Elendra Guardian Glen Elendra Pranksters High Fae Trickster Illusion Spinners Indigo Faerie Inspired Sprite Mistbind Clique Obyra's Attendants Oona, Queen of the Fae Pixie Illusionist Ringskipper Shadow Puppeteers Sleep-Cursed Faerie Snaremaster Sprite Sower of Temptation Spellstutter Sprite Storyteller Pixie Twining Twins Vendilion Clique Wee Dragonauts Winter Eladrin Wydwen, the Biting Gale