The Welsh region have wowed the rugby world repeatedly en route to the showpiece event at the Aviva Stadium in Dublin, with their rapid interplay cutting through several teams.
Ahead of their crunch meeting with European champions Leinster, we have picked out six of their best efforts from this season.
Round 1: Johnny McNicholl vs Southern Kings
Johnny McNicholl opened Scarlets’ account for the season with stunning finish as he terrorised Southern Kings with a man of the match performance in a 57-10 victory.
The winger took the ball five metres out and transferred it into his right hand before diving across the line under huge pressure from Sibusiso Sithole and Kurt Coleman.
He grounded the ball with one hand just before coming into contact with the flag despite his entire body being in touch as he rode the challenge of Coleman.
Round 7: Jonathan Evans v Cardiff Blues
The scrum-half replacement scored the pick of the tries as Scarlets claimed a bonus-point victory in the Welsh derby against Cardiff Blues in Llanelli.
Hadleigh Parkes moved the ball brilliantly out of contact with quick hands to Steff Evans, who threaded a grubber kick through which bounced up favourably for his namesake.
Evans collected the ball under pressure from Cardiff’s last line of defence and crashed over to complete a lovely team move and seal a 30-17 triumph.
Round 11 – Josh Macleod v Ospreys
With the clock ticking into overtime and Scarlets down by four points with only 14 men on the pitch, Josh Macleod popped up with a match-winning try at the death.
Time appeared to have run out for Scarlets, but a perfectly measured cross-kick by Scott Williams was caught by substitute Macleod, before the No.8 dashed 10 yards and touched down.
The dramatic finish at a rain-drenched Parc y Scarlets saw the hosts claim a 12-9 victory and prompted jubilant celebrations from the men in red.
Round 18 – Aled Davies v Munster
Despite the game ending in a rare defeat for the defending champions, Aled Davies produced the moment of the match in Scarlets’ 19-7 defeat to Munster.
Wayne Pivac’s side played some breath-taking rugby in the opening 15 minutes at Thomond Park and took the lead after stretching the hosts with their dynamic attacking play.
The move saw Rhys Patchell, Paul Asquith, Tom Williams and James Davies combine before scum-half Davies crossed the whitewash after initially being brought down.
Semi-Final Qualifier: Steff Evans v Toyota Cheetahs
Steff Evans was the star man as Scarlets dismissed Toyota Cheetahs to secure their place in the last four of the Guinness PRO14 Final Series with a 43-8 victory.
The Wales international scored twice in a man of the match display at Parc y Scarlets, with his second try demonstrating his class as he punctured the Cheetahs defence.
Picking the ball up near the halfway line, the 23-year-old weaved through the orange shirts before kicking past the last man and collecting to score.
Semi-Final: Rob Evans v Glasgow Warriors
A try that demonstrated Scarlets’ attacking talent at their very best.
Johnny McNicholl gathered the ball in space and left Fraser Brown chasing his shadow, before finding Steff Evans on his outside with a delightful offload.
Evans sprinted down the touchline and found Gareth Davies on the inside, who sidestepped his man and put in prop Rob Evans.
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