I´d like to see a new kind of ability that is only activated when a special card is on your hand.
For example they release a couple of cards from the same clan and their bio say they are twins. They could be:
Ability: Efg: power plus 4
Ability: Abc damages plus 5
Of course you should add them both to your deck in order to activate their ability. When only Abc comes to your hand its ability would be useless because Efg didn´t. They should have really strong abilities because it wouldnt be that easy to activate em.
There are hundreds of Gods from all of the worlds pantheons, @ whoever said there aren't enough Gods to make a clan. I don't see that it makes any sense though, it would be a weird clan, but that name Frightans, thats a good name.
How about The Union
union heads of the city, all kinds of workers
Dock worker, Taxi, factory worker, who else is in a union (but not police and anything already in UR)
electricians, plumbers, hotel workers, post office jobs, engineers, air traffic controllers, etc etc
Bonus: Support -1 opp dmg?