The Balrog is a great candidate for a single-character deck.
Red Deck + 4x A1D2 (14 cards, Melee)
The Balrog – 17 Talent Cards
3x Flame Sword
A7/D7 If used as defense, attacker takes 2 damage.
3x Fire Whip
A5. May attack a target up to 3 spaces away and move target adjacent to Balrog.
3x Foe Beyond Any
All enemies adjacent to Balrog take 3 damage. Opponents must discard 1 card for each character affected.
A3. Doesn’t count as an action.
Do 1 damage to an adjacent character. Playing this card does not count as an action.