What i would use:
Leaviatonn, Arkn, Stalfhaust or Klawz, Ksendra, eddie, Dave, Gabrielle, Noland
In fact, i was planning this deck. I plan a lot of decks, too bad i dont have the clintz to make them :/
Dr Ergo - Hriger? 2 Rounds play isn't that useful at all, for 1 damage extra and a more useful all round ability, he's worth it.
Numar/Eddie - Eugene + Fanny - Nanook?
4 4* is sort of a weird combo, I like it but trading in some more solidity and a type of DR will help you on weaker hands.
I like using Noland as the 4* Watu, not as useful as Eddie, but it depends on the rest of your deck. Dave + Eugene + Eddie is a killer hand though!
I would drop Dr Ergo down to klaws or Stalfhaust and get Dave up to Eugene/Nanook or Numar up to the 5* DR that's 7/7.
You don't have a DR or +life in the deck, so defensively it's kind of weak. adding the 5* would make it a tad bit more balanced.
She was too much of a threat. I don't see how but people viewed her as a threat. Same with Ulrich.
Don't get Ksendra, there's a reason people don't use her. Hriger + XU52 are closer than you think. Hriger - pill is sort of - 7 attack or + 7 attack on average.