You can Special Summon this card from your hand, and if you do, Special Summon 1 'Vassal Token' (Thunder-Type/LIGHT/Level 1 /ATK 800/DEF 1000) to your opponent's side of the field in Defense Position. If you activated this effect, you cannot Special Summon monsters from your Extra Deck for the rest of this turn. If this card is Tributed for a Tribute Summon: You can activate this effect; you can Tribute Summon 1 monster during your Main Phase this turn, in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) You can only use each effect of 'Mithra the Thunder Vassal' once per turn.
Atom 1.0
