One drake (Tenebron) teaches you very little about the real fight and actually can encourage bad habits like taking portals or not pushing hard enough on DPS.

• 留下一只龙能够让你的团队学到的东西非常少，而且会让团员们养成偷懒或者是乱进门的坏习惯，直接从三小龙开始练习起吧。