I think it encourages players to have more of a challenge
All this time everyone (majority) has been complaining about no more challenge in the game
I say that Tynon dont bring 2nd sub cause people who build up their 2nd sub will eventually defeat these bosses much quicker and easier.
When more bosses are released for my sirius armor plans i think they can maybe bring in 2nd sub - Also another thing is that Tynon must bring out another 5 Royal Challenge heroes with some cool bonuses
I say not time for 2nd sub and lets keep the challenge