* DuelingShows: With ''Anime/YuGiOhZEXAL'', which aired the season after it. Both focus on middle school aged kids and card games. It helps that the creator of Vanguard actually started out as a manga-ka for ''Manga/YuGiOhR'' and Takahashi's (the creator of YGO) understudy.
* FanNickname: Asaka is called rule 63 Aichi due to their physical similarities.
** {{Yandere}} [[spoiler:Aichi]] started to catch on after ride 44. Also [[spoiler: [=PsyAichi=].]]
** [[Anime/PuellaMagiMadokaMagica Suibey]] after 58 aired.
** Among his Japanese fans, Ren is often referred to as "Ren-[[JapaneseHonorifics sama]]".
** [[spoiler: Platina]] Ezel is frequently referred to as Pretzels or [=PEzel=] for short.
** When [[spoiler: Kai]] shows off having Psyqualia in the manga, it was quickly given the nickname [[spoiler: Kaiqualia.]]
** A real life example, Izumi Kitta, Misaki's voice actor, has a tendency to pull two triggers to break through her opponent's guards, and a lot of them are [[ThereIsNoKillLikeOverkill double critical triggers.]] This has earned her the nickname of Izuqualia.
* HeyItsThatVoice: [[TsubasaYonaga Hiro]][[LightNovel/IchibanUshiroNoDaiMaou shi]] is a newbie at card games.
** [[VideoGame/AgarestSenki Weiss!?]] Since when did you start playing card games?
** [[Creator/AtsushiAbe Touma]] is now a teacher.
*** Later in the series, he gets tired of teaching and becomes a {{Jerkass}} {{Bishonen}} with PsychicPowers. By the end of Season 1, the Jerkass part is dropped.
** [[Creator/NoriakiSugiyama Katsumi Morikawa]] is [[Manga/{{Naruto}} angsting]] over the lack of Grade 3s in his hand.
*** "[[VisualNovel/FateStayNight King of Knights! Do you have enough Grade 3s in stock!!!???]]"
** [[Anime/TengenToppaGurrenLagann WHO THE HELL DO YOU THINK]] [[Creator/KatsuyukiKonishi KISHIDA OSAMU]] IS!!??
** [[Creator/KentaroIto Gouki]] is a [[Manga/{{Bleach}} Soul Reaper]]
*** [[Creator/YuutoKazama Kaoru "Ja-pan/Ka-boom" Komatsubara]] was the bearer of the [[Anime/DigimonAdventure Crest of Friendship.]] He was also [[VideoGame/MegaManX Zero]].
** [[Creator/AkenoWatanabe Kyou]] can [[LightNovel/ACertainMagicalIndex summon golems with magic]] and is also a [[LightNovel/ShakuganNoShana Lord of the Crimson Realm.]]
*** [[Creator/HitomiNabatame Asaka]] is a [[LightNovel/ShakuganNoShana Flame Haze.]]
** [[Creator/TetsuInada SOUL CHARGE!]] [[TheDragon SOUL CHARGE!!]] [[RuleOfThree SOUL CHARGE!!!]] [[Anime/TurnAGundam UNIVEEEEEEEEEEEERRRRRRRRRSSSSSSSSSSSEEEEEEEEEEEEE!!!!!!!]]
*** ULTIMATE DIMENSIONAL ROBO, GREAT DAIYUSHA!!!!
** [[Creator/YoshinoNanjo Rekka]] is fripSide's main vocalist.
** [[SuzukoMimori Kourin]] is a [[Anime/TanteiOperaMilkyHolmes detective with telekinetic powers]].
*** Misaki can hear things that others cannot.
** [[KenjiAkabane Kouji Kabuto (Shin Mazinger Z)]] controls yet another SuperRobot.
** Leon tries to resurrect the Souryuu family's former glory, by being an [[Anime/TheIdolmaster idol]].
** [[VisualNovel/FateStayNight Rin]] [[Creator/KanaUeda Tohsaka]] takes a rest from Magus practice and plays card games, she still retains her Kung Fu though.
** [[TooruNara Naoki]] will grow up to become a member of the [[Anime/{{Pokemon}} Sinnoh Elite Four]]. Also, he is no stranger to [[Manga/{{Chihayafuru}} card games]]
** [[Creator/HiroyukiYoshino Shingo]] used to be a [[Anime/MobileSuitGundam00 Super Soldier that pilots a Gundam.]]
*** Speaking of Gundam pilots, there's [[Creator/SoichiroHoshi Li]][[Anime/MobileSuitGundamSEED zard]] and [[TakehitoKoyasu Horoscopes.]]
** One does not want to mess with the Sendou family. Because [[Creator/EmiShinohara Aichi's mother]] used to be the [[Anime/SailorMoon Soldier of Thunder and Courage]] and is also mother to [[Manga/{{Naruto}} Naruto]] and [[LightNovel/ACertainMagicalIndex Mikoto Misaka]]. Yeah, you definitely don't want to piss any one of the Sendou family off.
** [[Creator/RinaSato Negi]] [[Manga/MahouSenseiNegima Springfield]] is now a young Indian girls who loves doughnuts and controls cute witches.
*** After his near escape from being froze to death in the sea bed, [[KazuyukiOkitsu Gunzou]] [[Manga/ArpeggioOfBlueSteel Chihaya]] now has the ability to trap people in ice.
* PlayingAgainstType: [[BigBad Ren]] [[{{Jerkass}} Suzugamori]] is quite different from Creator/AtsushiAbe's [[NiceGuy usual]] [[OrdinaryHighSchoolStudent type]].
** FridgeBrilliance: [[spoiler: When not under the influence of [[PsychicPowers PSYqualia]], he really is a NiceGuy!]]
* RelationshipVoiceActor: [[Creator/AtsushiAbe Ren]] and [[Creator/AkenoWatanabe Kyou]] have fought each other before in a [[LightNovel/ACertainMagicalIndex certain magical index.]] In Legion Mate, [[Creator/RinaSato Misaka Mikoto]] joins the fray, using the same clan as Ren.
** [[Manga/SpecialA Elsewhere]], [[TsubasaYonaga Aichi]] and [[Creator/AyahiTakagaki Takuto]] have been brother and sister.
* TalkingToHimself: The entirety of Episode 155 can be summed up by [[spoiler: Leon and Takuto talking to themselves.]] The preview for episode 156 shows that this pattern will be on for a while.