

Effect
Once per turn: You can change this card to face-down Defense Position. If this card is Flip Summoned: It gains 800 ATK until the end of this turn.
The monster effect "(1): You can activate this effect during your Main Phase; change this card to face-down Defense Position (you can only use this effect once per turn)" is an Ignition Effect. (This effect does not target.)
The monster effect "②: If this card is Flip Summoned: This card gains 800 ATK until the end of this turn" is a Trigger Effect. (It does not target. This effect is applied only to "Humpty Dandee" itself.)
If this card is flipped face-up due to battle or a card effect, the effect of "Humpty Dandee" that increases its ATK will not activate.
If "Skill Drain" is applied and the effect is negated, the ATK of "Humpty Dandee" that was increased returns to its original value.
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