Undercorpse Dragon - Mementoral Tectrika
Level 11 EARTH
Wyrm / Effect
Cannot be Normal Summoned/Set.
Must be Special Summoned (from your hand or GY) by shuffling 5 other "Memento" monsters with different names from your hand and/or GY into the Deck and/or Extra Deck.
[1] While you control no other monsters, this card can attack each of your opponent's monsters, once each.
[2] Once per turn, if your opponent activates an effect: You can Special Summon 1 "Memento" monster from your hand or GY.
Memento Horn Dragon
Level 8 DARK
Dragon / Effect
You can only use the [2] effect of this card once per turn.
[1] If there are 3 or more "Memento" monsters in your GY with different names, you can Special Summon this card (from your hand). You can only Special Summon "Memento Horn Dragon" once per turn this way.
[2] If this card on the field is destroyed by card effect: You can target 3 face-up cards on the field, including a "Memento" card you control; Destroy them.
Memento Seahorse
Level 5 EARTH
Beast / Effect
You can only use each of the [1] [2] effects of this card once per turn.
[1] If you control no face-up monsters, or all face-up monsters you control are "Memento" monsters: You can Special Summon this card from your hand.
[2] During your Main Phase: You can destroy 1 "Memento" monster you control, and if you do, send any number of "Memento" monsters with different names, from your Deck to the GY, whose total Levels are equal to or less than the destroyed monster's original Level.
Memento Enwitch
Level 3 DARK
Spellcaster / Effect
You can only use each of the [1] [2] effects of this card once per turn.
[1] If this card is Normal or Special Summoned: You can add 1 "Memento" monster from your Deck to your hand, except "Memento Enwitch".
[2] You can target 1 Level 2 or lower "Memento" monster in your GY; Destroy 1 "Memento" monster you control, and if you do, Special Summon that target.
Memento Meis
Level 1 LIGHT
Fairy / Effect
You can only use each of the [1] [2] effects of this card once per turn.
[1] During your opponent's Main Phase, if you control "Undercorpse Dragon - Mementoral Tectrika" (Quick Effect): You can discard this card, then target 1 face-up monster your opponent controls; Gain control of it until the End Phase.
[2] During your Main Phase: You can destroy 1 "Memento" monster you control, and if you do, add 1 "Memento" card from your Deck to your hand, except "Memento Meis".
Memento Goblin
Level 1 DARK
Fiend / Effect
You can only use each of the [1] [2] effects of this card once per turn.
[1] During either Main Phase, if you control "Undercorpse Dragon - Mementoral Tectrika" (Quick Effect): You can discard this card; This turn, your "Memento" monsters cannot be targeted by your opponent's card effects.
[2] During your Main Phase: You can destroy 1 "Memento" monster you control, and if you do, send up to 2 "Memento" cards with different names from your Deck to the GY, except "Memento Goblin".
Undercorpse Centre - Mementoran
Field Spell
You can only use the [2] effect of this card once per turn.
[1] If your "Memento" monster battles, your opponent cannot activate Spell/Traps until the end of the Damage Step.
[2] If a monster(s) you control is destroyed by battle or card effect: You can target 1 of them; Special Summon 1 "Memento" monster with a lower Level than the target from your hand or GY .
[3] During your End Phase: You can target 1 "Memento" Spell/Trap in your GY; Set it.
Memento Bone Party
Quick-Play Spell
You can only use each of the [1] [2] effects of this card once per turn.
[1] Destroy 1 "Memento" monster in your hand or on your face-up field, and if you do, take 1 "Memento" monster with a different name from your Deck, and either add it to your hand or Special Summon it in Defense Position.
[2] During your Main Phase: You can banish this card from your GY, then target 1 "Memento" monster you control; This turn, if it attacks a monster in Defense Position, inflict Piercing battle damage to your opponent.
Memento Bone Back
Quick-Play Spell
You can only use each of the [1] [2] effects of this card once per turn.
[1] If a "Memento" monster(s) leaves the field due to your opponent: Special Summon 1 "Undercorpse Dragon - Mementoral Tectrika" from your hand or Deck, ignoring its summoning conditions.
[2] If a "Memento" monster(s) leaves your GY by your opponent, while this card is in your GY: You can banish this card from your GY; Special Summon any number of "Memento" monsters with different names from your hand and/or Deck.
Memento Fracture Dance
Normal Trap
You can only use each of the [1] [2] effects of this card once per turn.
[1] If you control a "Memento" monster: You can target 1 card on the field; Destroy it, then if you control "Undercorpse Dragon - Mementoral Tectrika", you can destroy 1 card on the field.
[2] During attack declaration involving your "Memento" monster and your opponent's monster: You can banish this card from the GY; All monsters your opponent currently controls lose 1000 ATK until the end of the turn.
Memento Cranium Burst
Continuous Trap
You can only use the [2] effect of this card once per chain.
[1] While you control a "Memento" monster, your opponent's monsters that can attack, must attack your monster with the highest attack.
[2] When a monster your opponent controls activates its effect; You can target 1 "Undercorpse Dragon - Mementoral Tectrika" you control; Make it lose 1000 ATK/DEF, and if you do, negate that activated effect.