5 cards where the card is tagged “cycle-onslaught-avatar”

Doubtless One (Onslaught #27)
Heedless One (Duel Decks Anthology: Elves vs. Goblins #7)
Nameless One (Onslaught #100)
Reckless One (Duel Decks Anthology: Elves vs. Goblins #48)
Soulless One (Planechase #41)

This search is finished. Now the real work can begin.