Nidavellir

The highest coin on that tavern location becomes active; if coins tie, the tied players are ordered by their gem values (highest gem plays first) and resolution continues in descending gem order (p.5).

Gems are traded at the end of each tavern resolution between the players who were tied on the same coin value, following the specific pairings for 2–5-way ties (p.6). The special gem 6 cannot be traded and its owner is excluded from the exchange (p.6).

You immediately recruit a Hero when placing a Dwarf creates a complete line of one rank of each class (or when a card/ability creates such a line) (p.5). You must always keep your total number of complete lines equal to your number of recruited Heroes plus one, and certain Hero effects (e.g., Bonfur/Dagda) that force discards can prevent recruiting until lines are restored (p.5, p.9).

No — ties are determined during bid revelation before transformations, so transforming a coin on a tavern being resolved does not change the resolved order for that tavern and gems are still traded for that resolution as determined (p.6).

Each class has its own Bravery formula (Warriors = sum of Bravery Points; Hunters = number squared; Miners = sum × ranks; Blacksmiths follow the sequence; Explorers = sum) and you sum all class values plus neutral Hero values and your coins for the Final Bravery Value (p.4, p.7). For Warriors, the player with the strict majority adds their highest-value coin to the Warrior Bravery Value, and if several players are tied for majority each tied player adds their highest coin (p.4, p.7).