I'm using Skeelz and Jungo which I'm willing to change as Jungo aren't that great in T2. The deck is Caelus Cr Dwan Michael Mineva Askai Ongh Zornado and Ambre (which combines well with Michael and Caelus)
Any advice for possible changes?
I would probably get rid of Jungo and replace it with something like Graksmxxt, Uranus (very helpful in survivor), Chiara Cr and maybe Stella. Also when you get around the 10/14 stage it would probably be a good idea to change Ambre to Morphun. Hope this helps.
Honestly, I've never been fond of Dwan in survivour, and typically, I'd only ever use 3 in the Skeelz half - which would be Michael, Logan & Caelus Cr.
As far as the Jungo half goes, I'd probably just add in Niva, and if you like, you could potentially use Troompah, worst case scenario he's a 6/7 with +5 attack.
With leaders, Morphun may be a good idea, especially with a high survivour score, as Luke stated.
If needs be - he can also be used as an attacker since 8 power is pretty decent.