thanks for info, for me it's too annoying and too time consuming to play the same level over and over again, that's why i love autoplay:
i experimented a little and carriage rider, the wickerman and red bat are working fine. won 14 rounds in a row. didn't die untill now...
@ witkacy, didn't see your post first...CR is awesome since he can remove the status of the boss
detailed team composition:
Carriage rider: 3x paladin arcane 1x paladin power and 2x health mystical (3 Skillshards invested)
red bat: 4x strength fierce 2x rush will (maxed skills)
wickerman: 5x strength fierce 1x green overhelmin (4 skillshards invested)