Here's something to think about: If they'd waited until 2020 to summon Naofumi, he could've brought the corona virus along with him, and then it would've spread throughout the entire kingdom after he was betrayed, like some kind of divine punishment.
Anyway, here's some more fun shields:
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Pizza Shield: The shield turns into a pizza plate with a large pizza on it, which when eaten will grant every possible benefit, including full restoration of health, enhancing energy and powers, curing ailments, etc. But once he finishes the pizza, it can be a while before he can summon another. Requirements: Pizza, various healing and enhancement potions.
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Skateboard Shield: The shield turns into a skateboard, and grants him great skills with it. Requirements: Easy to unlock with exp or something.
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Surfboard Shield: The shield turns into a surfboard, and grants him great skills with it. Requirements: Exp.
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Snowboard Shield: The shield turns into a snowboard, and grants him great skills with it. Requirements: Exp.
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Jetboard Shield: The shield turns into the jetboard from Jak 3 and grants him great skills with it. Requirements: Fuse the skateboard, surfboard, and the snowboard shields together, add wind magic.
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Flying Shield: The shield turns into a hoverboard, letting him fly through the air at highway speeds, and grants him great skills with it. Requirements: Upgrade the Jetboard.
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