I find that jungo and junks work well, jungo boost the high life you get through winning making it hard to catch up and junks have cards like gil,rowdy,tremorh and gibson which you can save your pills for jungo so those clans work best for me, what clans work for you?
Well I am no good at Survivor-Elo but I just got my first 7 in a row
with a Pirana/Nightmare/Ambre deck in T2.
I only lost because I made a mistake in their pill count.
I had 8 and used 7 when they had 7.
My preset is DemonShip check it out.