[Bampop]

One other player. You can only ever have one helper. Nothing about that card changes that.

From the rules:

If you cannot win a combat on your own, you may ask any other player to help you. If he refuses, you may ask another player, and so on, until they all turn you down or someone helps. Only one player can help you, adding his combat strength to yours. Anyone can play cards to affect your combat, however!