MOAR
Explosion Drive (Yuga Ohdo)
This Skill can be used if the only monsters in your Deck are Spellcaster Type or Rock Type.
[REQUIREMENT] None
[EFFECT] This turn, 1 face-up FIRE Attribute monster on your field gains 500 ATK and its Level is increased by 1. Then, you can Set 1 “Road Magic – Explosion” from your hand to your Spell & Trap Zone, and if you do, add 1 FIRE Attribute monster with 800 or less DEF from your Graveyard to your hand.
Set – Sparks (Yuga Ohdo, Romin Kassidy)
[REQUIREMENT] Once per Duel.
[EFFECT] Set 1 “Sparks” from your Deck or Graveyard to your Spell & Trap Zone.
Curse of Dark (Lucidien “Luke” Kallister)
This Skill can be used if the only Level 4 or higher monsters in your Deck are Dragon Type Normal Monsters or “Multistrike Dragon Dragias”.
[REQUIREMENT] None
[EFFECT] 1 face-up DARK Attribute Normal Monster you Normal Summoned this turn gains 500 ATK until the end of this turn. Then, if it is “Dark Dragon Knight”, you can shuffle 1 card from your hand into the Deck, and if you do, that monster gains 700 more ATK while it is face-up on the field.
Dragon Grace (Lucidien “Luke” Kallister)
This Skill can be used if the only monsters with 1400 or more ATK in your Deck are Dragon Type.
[REQUIREMENT] A face-up “Dragon’s Sage” that was Normal Summoned this turn is on your field.
[EFFECT] This turn, 1 face-up Dragon Type monster on your field gains 400 ATK , but it cannot attack directly.
Rousing of the Dark Ruler (Gavin Sogetsu)
This Skill can be used if the only monsters with 1400 or more ATK in your Deck are Warrior Type.
[REQUIREMENT] During the turn you Normal Summoned a Level 6 or higher DARK Attribute or EARTH Attribute Warrior Type monster.
[EFFECT] Change 1 Attack Position monster on your opponent’s field to face-up Defense Position.
Blue Falcon Formation (Gavin Sogetsu)
This Skill can be used if your Deck contains 6 or more Level 5 or higher Normal Monsters with 1400 or more DEF and the only Level 4 or higher monsters are Warrior Type, Fairy Type, or Winged Beast Type.
[REQUIREMENT] During the turn you Normal Summoned a Level 4 or higher Normal Monster with 1300 or more ATK and 1400 or more DEF.
[EFFECT] 1 face-up monster your opponent controls loses 800 ATK and DEF until the end of this turn.
Psychic Drive (Romin Kassidy)
This Skill can be used if the only monsters with 1400 or more ATK in your Deck are Psychic Type.
[REQUIREMENT] Pay 300 LP.
[EFFECT] 1 face-up Level 5 or higher monster on your field you Normal Summoned this turn gains 400 ATK until the end of this turn. Then, if it is “Prima Guitarna the Shining Superstar”, you can add 1 Level 2 Psychic Type Normal Monster from your Graveyard to your hand.
Noodle Ninja Boost
This Skill can be used if your Deck contains 6 or more Pyro Type Normal Monsters with 1300 or less ATK and the only Level 5 or higher monsters are FIRE Attribute with 2400 or less ATK and 0 DEF.
[REQUIREMENT] None
[EFFECT] 1 face-up Level 5 or higher monster on your field you Normal Summoned this turn or 1 face-up Pyro Type monster on your field with 1300 or less ATK gains 400 ATK until the end of this turn.
The First Servant
This Skill can be used if your Deck contains 5 or more Normal Monsters with 1500 or more DEF and the only Level 4 or higher monsters have 1200 or more DEF.
[REQUIREMENT] During the turn you Normal Summoned a Normal Monster with 2100 DEF or a Level 6 or 7 Legend Normal Monster.
[EFFECT] 1 face-up Normal Monster on your field gains 600 ATK until the end of this turn.
Of note, these last 2 Skills (as well as the previously showcased Magician’s Shuffle) are not associated to any character in their info screens, but still list obtaining methods (“Event” for Magician’s Shuffle, “Lifetime Mission” for these). Perhaps they are universally shared among all SEVENS characters?