We previously reported the effects for these cards in an earlier article.
VJMP-JP256Otonari Thunder
Note:Otonari Thunder, for its attaching effect, for monsters on the field can only use face-up monsters on the field.
Source: Yu-Gi-Oh!.JP
i.e. should read basically as:
VJMP-JP257Giant Kra-Corn
VJMP-JP258Splitting Planarian
Source: V Jump
VJMP-JP256Otonari Thunder
Note:Otonari Thunder, for its attaching effect, for monsters on the field can only use face-up monsters on the field.
Source: Yu-Gi-Oh!.JP
i.e. should read basically as:
You can target 1 Xyz Monster you control; attach 2 Level 4 LIGHT Thunder monsters from your hand, face-up field, and/or GY to it as material, including this card you control.
VJMP-JP257Giant Kra-Corn
VJMP-JP258Splitting Planarian
Source: V Jump