You could always just run Skeelz in mono. Dr Falkenstein, Sasha, and Sandro are still fantastic, and the recent releases of Xingshu and Beck - Nena have given them some solid hitting power as well. Round that out with Redra, Plunk, and Michael and you'll have yourself a pretty solid lineup.
Skeelz are great as either a 2 or 3 card splash to complement clans that are lacking in an area and have lacklustre cards available
A great combination is with Uppers who provide the solid damage and attack manipulation and Skeelz adds solidity at 3* and a DR at 2*
Maurice/Uppers 4* of choice/ Oxen/Rubie/Wendel/Redra/Xingshu/3* of choice is commonly used and is a very, very solid deck
the 2/3 card splash works well with clans who are more bonus reliant, and allows them to still activate their full potential most of the time but not have to suffer by adding in average backup to support this.
I like to see Skeelz as a great support clan that aids in keeping clans bonuses around by not needing their own