|To Special Summon from the hand||When Tributed for a Tribute Summon|
|Lucius the Shadow||1||DARK||Fiend||Caius the Shadown||Banish 1 Level 5 or higher monster from your Graveyard.||You can look at all Set cards your opponent controls, and your opponent cannot respond with cards or effects to this effect.|
|Mithra the Thunder||2||LIGHT||Thunder||Zaborg the Thunder||Special Summon 1 "Vassal Token" to your opponent's side of the field in Defense Position.||You can Tribute Summon 1 monster during your Main Phase this turn, in addition to your Normal Summon/Set.|
|Berlineth the Firestorm||3||FIRE||Pyro||Thestalos the Firestorm||Discard 1 card.||You can look at your opponent's hand and banish 1 card from their hand until the End Phase.|
|Garum the Storm||WIND||Winged Beast||Raiza the Storm||Return 1 Tribute Summoned monster you control to the hand.||You can add 1 monster with 800 ATK and 1000 DEF from your Deck to your hand, except "Garum the Storm Vassal".|
|Escher the Frost||4||WATER||Aqua||Mobius the Frost||Your opponent must control 2 or more cards in their Spell & Trap Zones.||N/A|
|Landrobe the Rock||EARTH||Rock||Granmarg the Rock||Change 1 face-up monster your opponent controls to face-down Defense Position.||You can add 1 monster with 800 ATK and 1000 DEF from your Graveyard to your hand, except "Landrobe the Rock Vassal".|
While not true members of the series due to their names, these monsters do fit into the Vassal theme.
|When Normal or Special Summoned||Graveyard-related|
|Edea the Heavenly||1||LIGHT||Warrior||Ehther the Heavenly||You can Special Summon 1 monster with 800 ATK and 1000 DEF from your Deck, except "Edea the Heavenly Squire".||If this card is sent to the Graveyard: You can target 1 of your banished "Monarch" Spell/Trap Cards; add it to your hand.|
|Eidos the Underworld||2||DARK||Spellcaster||Erebus the Underworld||You can activate this effect; you can Tribute Summon 1 monster during your Main Phase this turn, in addition to your Normal Summon/Set. (You can only gain this effect once per turn.)||You can banish this card from your Graveyard, then target 1 monster with 800 ATK and 1000 DEF in your Graveyard, except "Eidos the Underworld Squire"; Special Summon it in Defense Position.|
- ↑ McHale, Jerome. "March of the Mini-Monarchs!". Konami.com. https://yugiohblog.konami.com/articles/?p=7578.