A signature card is a card most associated with a Duelist, and tends to be used in a majority of their Duels. Duelists may have more than one signature card. They might have a connection and the Duelist may value it. Signature cards tend to be Monster Cards and to have alternate artworks in the OCG and TCG. In some cases, signature cards are created by their owners and/or only one copy of them exist in the anime like "Elemental Hero Neos" and the "Numbers".

In Yu-Gi-Oh! 5D's, they tend to be Synchro Monsters; and in Yu-Gi-Oh! ZEXAL, they tend to be Xyz Monsters. Signature Monster Cards may also be called Ace Monsters.

Some video games have a similar concept known as a Key Card, in which the player selects a certain card as their "ace". Yu-Gi-Oh! The Duelists of the Roses has "Deck Leaders".

Yu-Gi-Oh!

Yu-Gi-Oh! R

Yu-Gi-Oh! GX anime

Yu-Gi-Oh! GX manga

Yu-Gi-Oh! 5D's anime

Yu-Gi-Oh 5D's manga

Yu-Gi-Oh! ZEXAL anime

Yu-Gi-Oh! ZEXAL manga

References

1. ↑ Yu-Gi-Oh! Episode 102: "Freeze Play, Part 1"
2. ↑ Yu-Gi-Oh! Episode 103: "Freeze Play, Part 2"
3. ↑ ^{3.0 3.1} Yu-Gi-Oh! Episode 219: "The Dark One Cometh Part 5"
4. ↑ Yu-Gi-Oh! Episode 106: "Mechanical Mayhem, Part 1"
5. ↑ Yu-Gi-Oh! GX Episode 1: "The Next King of Games"
6. ↑ ^{6.0 6.1 6.2} Yu-Gi-Oh! GX Episode 21: "The Duel Off, Part 1"
7. ↑ Yu-Gi-Oh! GX Episode 91: "Don't Fear the Reaper"
8. ↑ ^{8.0 8.1} Yu-Gi-Oh! GX Episode 151: "The Power Within, Part 1"
9. ↑ Yu-Gi-Oh! GX Episode 167: "Gratitude Duel! Cronos vs Original Dropout Boy"
10. ↑ ^{10.0 10.1} Yu-Gi-Oh! GX Episode 19: "The King of the Copycats, Part 2"
11. ↑ ^{11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9} Yu-Gi-Oh! GX Episode 131: "All for One"
12. ↑ Yu-Gi-Oh! GX Episode 157: "A Creeping Threat! The Mysterious Visitor"
13. ↑ ^{13.0 13.1} Yu-Gi-Oh! GX Episode 179: "Farewell, Judai! A Tearful Graduation Ceremony"
14. ↑ Yu-Gi-Oh! GX Episode 88: "Blinded by the Light, Part 2"
15. ↑ Yu-Gi-Oh! GX Episode 166: "Armed Dragon VS Dragoon D-END!"
16. ↑ Yu-Gi-Oh! GX Episode 025: "The School Duel, Part 1"
17. ↑ Yu-Gi-Oh! GX Episode 039: "The Dark Scorpions"
18. ↑ Yu-Gi-Oh! GX Episode 7: "Duel and Unusual Punishment"
19. ↑ Yu-Gi-Oh! GX Episode 050: "Magna Chum Laude"
20. ↑ Yu-Gi-Oh! GX Episode 036: "Duel Distractions, Part 1"
21. ↑ Yu-Gi-Oh! GX Episode 83: "Schooling the Master"
22. ↑ Yu-Gi-Oh! GX Episode 57: "The Demon"
23. ↑ Yu-Gi-Oh! GX Episode 148: "Conquering the Past, Part 3"
24. ↑ ^{24.0 24.1} Yu-Gi-Oh! GX Episode 174: "Activate! "Clear World" - Ferocious Negative Effect"
25. ↑ Yu-Gi-Oh! GX Episode 060: "Pop Goes the Duel"
26. ↑ Yu-Gi-Oh! GX Episode 090: "Pro-Dueling"
27. ↑ Yu-Gi-Oh! GX Episode 093: "Heart of Ice, Part 1"
28. ↑ Yu-Gi-Oh! GX Episode 107: "A Jewel of A Duel: Part 2"
29. ↑ Yu-Gi-Oh! GX Episode 154: "Return of the Supreme King, Part 2"
30. ↑ Yu-Gi-Oh! GX Episode 155: "Return of the Supreme King, Part 3"
31. ↑ Yu-Gi-Oh! GX Episode 114: "Win Mr. Stein's Duel, Part 2"
32. ↑ Yu-Gi-Oh! GX Episode 032: "Field of Screams, Part 2"
33. ↑ Yu-Gi-Oh! GX Episode 033: "Field of Screams, Part 3"
34. ↑ Yu-Gi-Oh! GX Episode 146: "Conquering the Past, Part 1"
35. ↑ Yu-Gi-Oh! GX Episode 139: "A Sight Unseen, Part 1"
36. ↑ Yu-Gi-Oh! GX Episode 153: "Return of the Supreme King, Part 1"
37. ↑ Yu-Gi-Oh! GX Episode 169: "The Compensation of the Decision! O'Brien the Flaming Darkness"
38. ↑ Yu-Gi-Oh! GX Episode 172: "Duel Academia Crisis! The Gem Beasts Block the Way"
39. ↑ Yu-Gi-Oh! GX Episode 173: "Darkness Invasion! Stolen Memories"
40. ↑ Yu-Gi-Oh! GX Episode 100: "The Phoenix Has Landed, Part 1"
41. ↑ Yu-Gi-Oh! GX Episode 171: "End of Destiny! Magma Neos VS The Dark Ruler"
42. ↑ ^{42.0 42.1} Yu-Gi-Oh! GX Episode 18: "The King of the Copycats, Part 1"
43. ↑ Yu-Gi-Oh! GX Episode 037: "Duel Distractions, Part 2"
44. ↑ Yu-Gi-Oh! GX Episode 092: "Duel for Hire"
45. ↑ Yu-Gi-Oh! GX Episode 021: "The Duel Off, Part 1"
46. ↑ Yu-Gi-Oh! GX Episode 022: "The Duel Off, Part 2"
47. ↑ Yu-Gi-Oh! GX Episode 034: "The Fear Factor"
48. ↑ Yu-Gi-Oh! GX Chapter 2: "Princeton!!"
49. ↑ Yu-Gi-Oh! GX Chapter 12: "Duelist Instinct!!"
50. ↑ Yu-Gi-Oh! GX Chapter 8: "Two Big Brothers!!"
51. ↑ Yu-Gi-Oh! GX Chapter 33: "Ultimate Hero!!"
52. ↑ ^{52.0 52.1} Yu-Gi-Oh! GX Chapter 10: "A Meeting with Destiny!!"
53. ↑ ^{53.0 53.1 53.2 53.3} Yu-Gi-Oh! GX Chapter 59: "Jaden in Crisis!!"
54. ↑ Yu-Gi-Oh! GX Chapter 55: "The Terror of the Forbidden Beasts!!"
55. ↑ ^{55.0 55.1} Yu-Gi-Oh! GX Chapter 57: "The Exchange Battle Heats Up!!"
56. ↑ Yu-Gi-Oh! GX Chapter 58: "MacKenzie's Stealth Maneuvers!!"
57. ↑ Yu-Gi-Oh! 5D's Episode 128: "Yusei's Last Stand"
58. ↑ Yu-Gi-Oh! 5D's Episode 31: "The Reunion Duel"
59. ↑ Yu-Gi-Oh! 5D's Episode 001: "On Your Mark, Get Set, DUEL!"
60. ↑ Yu-Gi-Oh! 5D's Episode 141: "Duel of Despair! Moving Fortress Fortissimo!"
61. ↑ Yu-Gi-Oh! 5D's Episode 076: "Syd Is Vicious"
62. ↑ ^{62.0 62.1} Yu-Gi-Oh! 5D's Ride 19: "Trump Card...!!"
63. ↑ ^{63.0 63.1} Yu-Gi-Oh! ZEXAL Episode 59: "Rockin' and Rollin'"
64. ↑ ^{64.0 64.1 64.2} Yu-Gi-Oh! ZEXAL Episode 68: "Overture toward Ruin - The Threat of the Sphere Field Cannon!"
65. ↑ Yu-Gi-Oh! ZEXAL Episode 88: "The Pulse of V - A Super-Rebirth, Hope Ray V!!"
66. ↑ Yu-Gi-Oh! ZEXAL Episode 25: "Frozen in Time"; Monster Popularity Poll (place 4)
67. ↑ ^{67.0 67.1} Yu-Gi-Oh! ZEXAL Episode 33: "Foolish Fans": WDC Profiles
68. ↑ Yu-Gi-Oh! ZEXAL Episode 45: "Ruffled Feathers"
69. ↑ Yu-Gi-Oh! ZEXAL Episode 46: "Family Leave"
70. ↑ Yu-Gi-Oh! ZEXAL Episode 33: "Foolish Fans"
71. ↑ Yu-Gi-Oh! ZEXAL Episode 58: "Swimming With Sharks"
72. ↑ Yu-Gi-Oh! ZEXAL Episode 66: "Sphere of Fear: Part 2"
73. ↑ Yu-Gi-Oh! ZEXAL Episode 82: "Lone Barian Knight - Mizael the Galaxy-Eyes User Appears"
74. ↑ Yu-Gi-Oh! ZEXAL Rank 19: "Messenger from the Moon!!"
75. ↑ Yu-Gi-Oh! ZEXAL Rank 30: "Absolutely Unpredictable!!"