Bath took full advantage of George Earle's red card to claim a crushing 38-3 victory and end Cardiff Blues' unbeaten run in European Challenge Cup Pool 4 on Thursday.
The home side were without leading point-scorer Rhys Priestland for their fourth match in the group, but international stars Taulupe Faletau, Francois Louw and George Ford were all back in action and the latter was instrumental as they avenged last week's 28-3 loss to the Blues.
Hooker Ross Batty got the hosts' first points as he charged his way through the defence to go over in the 26th minute, before Jack Wilson added a second try just after the restart to capitalise on their temporary numerical advantage following Kirby Myhill's yellow card for a tip-tackle.
Blues' chances were all but ended just a few moments later as Earle was shown a red card for making contact with an opponent's face and Bath ultimately romped to victory - Aled Brew, Batty and Elliott Stooke adding further tries, while Ford kicked three second-half conversions.
In Paris, Edinburgh's second-half fightback proved too little, too late as Stade Francais' first-half haul of 26 points just about proved unassailable, with the hosts winning 26-20.
The home side claimed three tries courtesy of Remi Bonfils, Hugo Bonneval and Geoffrey Doumayrou in a dominant first-half display.
Edinburgh picked up 17 points without reply after the break, but their efforts were for nothing in the end as their lost their first game in Pool 5.