XX-Saber Boggart Knight

When this card is Normal Summoned, you can Special Summon 1 Level 4 or lower "X-Saber" monster from your hand. This card cannot be used as a Synchro Material Monster, except for the Synchro Summon of a "X-Saber" monster.

This card cannot be used as a Synchro Material Monster, except for the Synchro Summon of a "X-Saber" monster.

except for the Synchro Summon of a "X-Saber" monster

"X-Saber" monster

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Something to keep in mind really.

For both me AND for other people.