Maiden of the Aqua [DB2-EN211] Common ST10-06 You must control a Spirit

You must control a Spirit monster to activate and to resolve this effect

in your Monster Zone

Set: Dark Saviors Card type: Normal Spell Rarity: Super Rare Draw 2 cards

You can only activate 1 "Prologue of the Destruction Swordsman" per turn

Maiden of the Aqua [DB2-EN211] Common ST10-06 You must control a SpiritSet: Dark Beginning 2 Card type: Effect Monster Rarity: Common Attack: 700 Defense: 2000 As long as this card remains face up on the field, the field is treated as "Umi". (However, there is no increasing or decreasing of ATK DEF due to Umi's effect.) If there is an active field card on the field, this effect is not applied.