Are three reds afraid of 120 troglodytes? I should try it. :)
Thanks to Shakti's starting tactic, we set up a "fence" in front of the main stack of units, but in such a way that it doesn't get broken through, and also so that the dragon doesn't get attacked... and after removing one unit with a single attack and hitting with the main stack in the first round, 1-2 dragons die, depending on the number of troglodytes in the main stack.