Number Guardian
A Number's Guardian, Mach.
Number's Guardian (ﾅﾝﾊﾞｰｽﾞのｶﾞｰﾃﾞｨｱﾝ Nanbāzu no Gādian) are protectors of the "Legendary Number" cards in the Number's Ruins within the Yu-Gi-Oh! ZEXAL anime. In order for a Duelist to obtain those cards, he or she must Duel against their respective guardian to see if he or she is worthy of wielding the "Number". They are also not influenced by the Numbers' power.
