Dragonify

"" (竜化 Ryūka) is a keyword, currently unique to Dragon World. It allows you to, after paying a cost, equip a monster in hand and treat it as an item. Even so, 1 life may be gained by buddy gift if the card is a buddy. In effect, Dragonify, Station, Ride and Transform are exactly the same. The only difference between each is their support cards.

Dragonify is only given to 《Thunder Empire》monsters.

It is marked by the text: 

List of Sets with Cards

 * X2 Booster Set 1: Buddy Legends

Size 1

 * Batzz's Protection, "Dragonificator" Gao