This card can only be used to equip Warrior-Type monsters. The equipped monster is treated as Dragon-Type and increases the ATK and DEF of the equipped monster by 500 points.
Rulings
Netrep Rulings
If “DNA Surgery” and “Dragonic Attack” are both active, the latter one to resolve takes precedence.
Netrep Q&As
Q: If “Dragonic Attack” is equipped to a Warrior-Type monster changing it to Dragon-Type, would “Lord of D.” negate the effect of “Dragonic Attack” and destroy it? A: The effect of "Dragonic Attack" would still be applied. "Lord of D." has no affect on effects that targeted a Dragon-Type monster before "Lord of D." was on the field. This would include the Warrior-Type that becomes a Dragon-Type because of "Dragonic Attack." Curtis Schultz, 02/04/2004