Matthew Rees is eager to end his long career on a high note by securing a European Rugby Champions Cup spot for Cardiff Blues.
Southern Kings produced a stunning late fightback to claim only their second win of the season, halting Edinburgh's impressive run.
Saracens and Racing 92 secured home quarter-finals in the Champions Cup but the hopes of Exeter Chiefs are over after defeat at Munster.
Premiership champions Saracens are through to the last eight of the European Champions Cup after beating Lyon on Sunday.
Munster moved top of Pro14's Conference A after capitalising on Glasgow Warriors' defeat to in-form Benetton Treviso.
Munster ended a four-game losing streak against Leinster with a 26-17 triumph on Saturday, while Edinburgh retained the 1872 Cup.
The Dragons looked set to earn a draw despite playing for almost 50 minutes with a man down, but Cardiff Blues denied them right...
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Saracens battled past Cardiff Blues to stay top of Pool 3, while Toulouse came out on top in an entertaining clash with Wasps.
Premiership leaders Saracens made it three wins from three in the European Champions Cup after victory over Cardiff Blues on Sunday.
Alex Allan's dismissal did not prove costly as Glasgow Warriors beat the Scarlets, while Leinster scored 59 in a victory over the Dragons.
Leinster delivered a fantastic performance against the Ospreys, racking up 52 points as seven different players crossed for tries.
Gethin Jenkins dragged a shot at goal wide after requiring assistance to keep the ball on the tee in a victorious final match.
Gethin Jenkins, Wales' most capped player, will retire from rugby this weekend.
Munster overturned a 14-point deficit to beat Glasgow Warriors thanks to Rory Scannell's monster penalty with the final play.
Maxime Medard's late try proved crucial as Toulouse beat European Champions Cup holders Leinster on Sunday.
Newcastle Falcons' return to Europe's elite club competition was worth the wait as they beat stunning Toulon at Stade Mayol.