Balin and Bifur also benefit greatly from Unlikely Friendship, given that Balin is in Leadership and Bifur works quite well with Silvan decks. Unfortunately, they each have only the Dwarf trait, which limits them outside of dedicated dwarf decks in which they're competing with the vast gaggle of tribal-Dwarf heroes. They're great splash heroes and fantastic with 2+ players. Bifur is also one of only 5 heroes whose stat total is less than their printed threat, and he's the only hero who's under-costed without a clear catch: Beorn is immune to player cards, S Glorfindel raises threat and guilt levels, Na'asiyah cannot pay for allies, and Smeagol will likely turn on you. T Eowyn effectively has him beat there, but she's arguably the best hero in the entire game so that's not really a knock on Bifur. Elladan and Elrohir are sort of under-costed when played together, but that's a big restriction. Mirlonde is effectively under-costed, but then her ability is essentially blank if she's the only Lore hero. If Bifur was made today, would he be 8 threat? Or is his resource-smoothing ability considered a step below the traditional power curve, thus justifying the -1 to his threat cost? I suppose the argument might be that his ability doesn't actually gain you anything measurable: no stats, resources, readying, or knowledge has actually been gained because you paid a resource for another resource.
Grima, Elrond, Lo Bilbo, T Bilbo, T Beregond, S Beregond, Galadriel, Hirluin, S Theoden, T Theoden, Folco, and T Merry are all heroes with inflated printed threat. Folco, T Merry, and T Theoden essentially begin the game on par or better. Hirluin is expected to ramp up so quickly from passive ally boosts that his starting threat is anything but too high. So really we're left with Grima, Elrond, Lo Bilbo, T Bilbo, T Beregond, Galadriel, and S Theoden as the actual inflated threat heroes. Grima, T Beregond, and S Theoden are all heroes that reduce the cost of cards, and that might be considered an ability strong enough to justify an extra +1 to threat cost. Though I'd argue that it doesn't in S Theoden's case, and that he inherited his inflated threat from his Tactics version, which is exactly what happened to S Beregond. And why doesn't Damrod get a +1 to threat cost? Is it because he's less likely to play a trap every turn than S Theoden is to play a Rohan ally? Elrond's healing and Galadriel's abilities are definitly powerful enough to justify their threat cost. Poor Bilbo is just a bizarre design, but drawing an extra card in solo is quite powerful and I can almost understand what they were going for. On the whole, it seems like consistent cost reduction, uniquely powerful abilities, and being Bilbo are the three main causes of inflated threat cost.
Edited by pmdoug