I am a little confused on Dragonstone Port.
My understanding from others of the card is that (if I was a idiot) hypothetically I could name ever plot in the game and then when my opponent revealed his plot I would gain a power. Is that correct or is the limit once per phase from the errata on the naming of the card and not the power gain? Which would make it much less useful in joust but in melee I could potential gain multiple power if my opponents all revealed the same plot which I named? Or finally is it some sick middle ground of the two where I could name ever plot and get 3 power a round in melee per Dragonstone Port I have in play?