In my opinion Gold Dragon is one the most powerful magic monster among all magic monsters. Flying ability can help him to evade from melee and range attack monsters which can't fly. Healing ability helps him to las longer during battles. The coolest ability of the Gold Dragon is blast ability. With blast ability Gold Dragon can attack all of the enemy monsters in just one round. The last ability is magic reflect which Gold Dragon will reflex back all magic attacks against him. The only disadvantage of Gold Dragon is his slow speed which isn't problem at all also you can use monsters which increase the speed of all your team.