@Shnao, it's pretty cool that you brought it up! I never knew what ECO meant. I thought ECO stood for environmental (Eco-friendly) since all the monsters in it are mostly plant girls/teddy bears. Nah, teddy is what we call em since they are literally, uh, teddy bears?
Looks like the Dragon King features 3.5x attack for dragon type monsters. It's going to be really strong especially considering how strong is 6.25x dragon team already is.
12.25x, almost double the power of ADK teams!