Next Month’s Promo is キラー ・ポテト Killer Potato, likely to be localized Mystic Potato.
It’s a card that ‘builds/expands’ your field! It’s recommended to be used with Mystic Tomato.
It is the third V Jump Promo Card celebrating the upcoming 25th Anniversary.
Its effect will be revealed April 7th, 2023 on Yu-Gi-Oh.jp
Its effects and stats will be revealed later.
Source: V Jump