"My Buddy!" (おれのバディ Ore no Badi) is a series of monsters which share the same name (therefore, the rule 4-per-deck applies to the use of each member), all of them can be used as Buddy substitutes. Likewise, you may "Buddy Call" using it, and gain 1 life with "Buddy Gift".

Those cards have the artwork of a particular monster with chibi-style.

List of Sets Containing "My Buddy!" cards

List of "My Buddy!" cards

Danger World

Dragon World