Helicath
Helicath is a unique champion bring both a Valkyrie style shield that is based on his own Defensive stat and a 2 turn block damage buff. A very flexible champion that can be used in both Unkillable or Traditional clan boss teams.
The North Pole
Santa or Tower + Warcaster Unkillable with slot for cleanser for affinity friendliness.
Slow Tuned Man Tower Unkillable
Use a Maneater and Tower/Warcaster/Santa with a speed booster to achieve Unkillable.
Tower and Valkyrie Unkillable with 43 Champ
Use Tower to block the AOEs and Valkyrie shield to tank the stun.
Slow Tower Skullcrusher Unkillable
Tower + Skullcrusher Unkillable that allows a cleanser or debuff blocker keep your team stun friendly against affinity CB
Fast Hellcat Unkillable
Unkillable team using Roschard The Tower to block damage on the clan boss AOE hits and skullcrusher to tank the stun with his self unkillable.
The North Pole with 4:3 Champ
Taking the traditional Tower and Warcaster composition and adding in a 4:3 champion to maximize damage potential.