Hooligart, are there any plans to provide the Earth, Dark and Water decks with a second +1 to base gem level deck perk any time soon? Earth had one as set 7 (scarlet whores), Dark was set 6 (dungeon crawlers) and Water was set 3 (Moonlighters).
By having them it would allow for more useful hands in colosseum matches; right now there are far more options for building competative hands that can piggy back off your opponent's hand with fire & light due to the base gem level bonus .