Lost Monster

Lost Monster is a new Summoning mechanic created by LHK. They reside in the Extra Deck, and for their Summon, they need a number of banished monsters (which are face-up) to be flipped face-down for their Summon, indicated by their negative Level that they have.


 * If that monster's Level is -1 through -4, you need 1 banished monster to be flipped face-down.
 * If that monster's Level is -5 through -8, you need 2 banished monsters to be flipped face-down.
 * If that monster's Level is -9 through -12, you need 3 banished monsters to be flipped face-down.

Soul Shift
Lost Monsters are the exclusive owners of the "Soul Shift" keyword, similarly to how Xyz Monsters have the "detach" keyword. "Soul Shift" is the action of flipping a face-down banished card face-up to activate the effect of said Lost Monster.

Example

 * Genome Heraldry Lost Dragon 2 TIME monsters with different Levels You can Lost Summon this card (from your Extra Deck) by using "Chronorift Magician" and "Wereknight Falconer" (since they have different Levels) while banished; they are flipped face-down to Summon "Genome Heraldry".