Sunya isn't the most necessary card, but it's a good option to have in the back pocket just in case. I'd say have one ready to go.
Number C1: Numeron Chaos Gate Sunya (Anime) by DragonRikaZangetsu on DeviantArt
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Number C1: Numeron Chaos Gate Sunya (Yu Gi Oh Card Reading) #yugioh #masterduel #konami #gameshorts