When this card is Special Summoned: You can target 1 Wyrm-Type monster in your Graveyard, except "Magma Dragon"; Special Summon it in Defense Position, but its effects are negated. You can only use this effect of "Magma Dragon" once per turn. You cannot Special Summon monsters the turn you activate this effect, except Wyrm-Type monsters.
Can only activate effect when he is Special Summoned.
Negates the revived monsters’ effect.
Restricts your Special Summon.
Being the only archetype of Wyrm monsters, Metaphys is the only deck where Magma Dragon can be useful. Even with the revived Metaphys monster’s effect negated, they are still powerful beaters and can maintain field presence.