So in Bob’s Tavern Turn Two it usually costs 4 gold to upgrade to Tavern 2.
But for Millhouse Turn 1, Gold cost for Tavern Upgrade was 6. Turn Two Tavern Upgrade Cost 5 when normally it costs 4. Millhouse’s Gold costs for the rest of the game for Tavern Upgrades was always 1 cost more than is normal. This puts Millhouse too far behind in game play. If this was to happen to any other Hero it would put them too far behind as well.
Millhouse was adjusted last patch. Minions and Rerolls cost 2 (instead of 3 and 1 respectively), starts with 3 gold (like other Heroes) and Tavern Upgrades cost 1 more gold.