Penglai Pavilion won the Prix Turenne less than three weeks before finishing fifth in Treve's first Arc and his trainer Andre Fabre is well represented in the 2017 edition on Wednesday, which could be run in extreme conditions if weather forecasts are accurate.
A substantial part of the estimated 36mm of rain scheduled to fall on Paris is due late afternoon/early evening, meaning the already very soft Saint-Cloud turf could become really testing - quite apart from the prospect of the six runners facing a monsoon.
Fabre saddles Parabellum - last seen when fifth in the Grand Prix de Saint-Cloud - as well as Akihiro and the once-raced Londres for the Coolmore partners, the only member of the trio not engaged in the Arc.
Jean-Pierre Carvalho sends Instigator from his base in Germany, having finished fifth to subsequent Prix Foy winner Dschingis Secret in a Berlin Group 1 last time.
"Unfortunately he blew the start last time, otherwise I think he'd have been third," said Carvalho. "He should be fine on the ground and is coming down in grade, but it's far from won in advance with Akihiro and Parabellum in there."
Guignol won't be supplemented for the Arc
Guignol wins the Grosser Preis von Baden, photo Liesl King
Carvalho sent out Guignol to score at the beginning of the month in Germany's biggest race, the Grosser Preis von Baden, but is not tempted to supplement him for the Arc.
He said: "Guignol is very well and we'll look at a Group 1 in Munich next. If he runs well there we'd like to go to the Japan Cup."