Your search for "No.21" revealed the following:
Fire Emblem 0 (Cipher) Trading Card - B10-028N Mage of Vows Asbel (Asbel / Asvel)
$ 3.95Product details: Asbel / AsvelThis lovely card is from the Fire Emblem 0 (Cipher) trading card game B10 Crossroads Booster...
Fire Emblem 0 (Cipher) Trading Card - B10-096N The Mysterious Masked Knight Bruno (Bruno / The Mysterious Man / Zacharias / Zechariah)
$ 3.95Product details: Bruno / The Mysterious Man / Zacharias / ZechariahThis lovely card is from the Fire Emblem 0 (Cipher)...
Fire Emblem 0 (Cipher) Trading Card - B10-083N Little Segnergirl Velouria (Velouria / Velour / Beroa)
$ 3.95Product details: Velouria / Velour / BeroaThis lovely card is from the Fire Emblem 0 (Cipher) trading card game B10...
Fire Emblem 0 (Cipher) Trading Card - B10-035HN Myrmidon of Fiana Mareeta (Mareeta / Marita)
$ 6.95Product details: Mareeta / MaritaThis lovely card is from the Fire Emblem 0 (Cipher) trading card game B10 Crossroads Booster...
Fire Emblem 0 (Cipher) Trading Card - B10-027R (FOIL) Follower of the Winds Asbel (Asbel / Asvel)
$ 8.95Product details: Asbel / AsvelThis lovely card is from the Fire Emblem 0 (Cipher) trading card game B10 Crossroads Booster...
Tales of My Shuffle Vesperia Collection Box Trading Card - D-088 Strike Arte (Normal) (Flynn Scifo / Flynn)
$ 6.95Product details: Flynn Scifo / FlynnTales of My Shuffle is an awesome pan-Tales of Series card game~! Can you collect...