Changes the feild in favor of aqua and thunder monsters, but unfavorable to machine and pyro monsters!
Effect: All Fish, Sea Serpent, Thunder, and Aqua monsters on the field gain 500 ATK/DEF.
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You can create other cards by fusing Umi with another card. The following section show you wich card to fuse and what will you obtain.
SPELL
Magic Field
55
Drops S-POW / A-POW