Spartacus: A Game of Blood and Treachery

Yes. Each Attribute's dice pools are both the Combatant's stats and its total health (total dice = health); when you take Wounds you must surrender that many dice from any pools, reducing future rolls, and losing dice down to zero triggers defeat levels (Yield/Injury/Decapitation). (see p.15–17)

Attacker and defender roll their current ATK/DEF dice, sort each set highest-to-lowest into Dice Strings and compare pairwise — a Wound occurs when the attacker's die is greater than the defender's and ties go to the defender; any unopposed attack dice cause a Wound on a roll of 3 or more. (see p.16)

Each round both players roll all available Speed dice and total them; the higher total wins Initiative and chooses to go first or second that round, and any tie is re-rolled. (see p.15)

Yes — when surrendering dice for Wounds you may choose dice from any Attribute pools, but the Rule of One prevents reducing any pool below one die until all pools are at one; reducing a pool to zero ends the match and causes defeat. (see p.16–17)

Only during the Market phase's Open Market may Gladiators, Slaves, Equipment and Guards change hands between players; Intrigue Cards may never be traded and Asset Cards may not change hands during the Intrigue Phase. (see p.10; Intrigue restrictions on p.6)

Auctions use concealed bids (place Gold in hand, reveal simultaneously); highest bidder wins, tied highest bidders enter additional concealed rounds adding to their previous bids until one leads, and if everyone bids zero the auction fails and the card is discarded — for Hosting ties in a Failed Auction tied bidders roll dice to determine the Host. (see p.10–11)