- The ability is self-referential, so Sellsails can only discard gold from itself and not from any other card with the same title in play. The limit once per phase is card specific, so you can trigger each Sellsails you control once.
Ally. Mercenary. Smuggler.
Action: Discard 1 gold from Sellsails to choose and stand a Smuggler or Warship card. (Limit once per phase.)