Singleplayer Boss

OK! Mostly Ive been thinking of a last level after sherbet towers! Like a final boss or something between a giant goblin king! That one that shows up everytime you get ranked down to another league!

It would be big and scary and so tall that it wouldnt take the entire game screen but so it can attack air troops too! It can summon groups of goblins. 10-30 just to make it hard. Those goblins will attack your troops. It may sound really easy but those goblins are SUPER goblins or something.

The Goblin King can attack multiple troops at once. Like if ot does a swipe with his weapon. (A giant bag) to the right up in the air it would take down most of the minions, balloons and other air troops and capture them inside of the bag. Then the king would shake the bag for about 8 seconds and after that the troops he captured would go against your troops. Those eight seconds would be a great time to land a couple of lightning spells on top of him or something.

The barbarian king and archer queen can not be captured but takes some serious damage!

After youve taken down the boss you get some big reward. No idea what.

Could this be a good idea?