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A lot better than Temples

This card is mandatory

(Xyz Materials on that monster also become Xyz Materials on this card.) When this card is Xyz summoned, you may discard 1 Level 5 or higher WATER monster from your hand, and if you do, this card gains ATK points equal to the discarded monster's original ATK until the End Phase

Hearthstone Out of all the card games, Hearthstone is the most simple and straightforward: summon minions, attack the enemy and use magic to damage, buff or find minions

It can make Dark Magican and Baby Dragon turn into an even more powerful form

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