I have already saw an idea for personal titan. I would say it could be done also in a different way.
- You get a personal titan
- You have 6 attacks (you can not use same heros, just like in wars)
- You have limited number of moves on the board you can do, lets say 20 (no time limits)
- From the personal titan chest when and if you get 3* or 4* AM you get 2 kinds offered so you can chose what you like.
To add a twist triggering diamond doesnt count as a move.
I think this would make great use of element link.