Dragon King was a boss in Book 5, Chapter 6 Under The Sea.
The Dragon king is the boss of Chapter 5, episode 6. He says "I'm the Dragon empire of the East Sea". The Dragon King had 28 hearts.
|Infected Waters||Poisons Lex, Curses title||The Dragon King make a wave that infected tiles.|
|Power of the Sea||Powers-up and regenerate||The Dragon King makes a tsunami and powers-up the enemy.|
|Jelly swarm||Stuns lex and Poisons Lex||Dragon King makes a jelly swarm and let it have stun lex.|