Editing Warhammer 40,000/Tactics/Ynnari(7E) (section)

===Factions of the Ynnari===
According to both the new Gathering Storm II FAQ and the book itself, the Ynnari are not a unified faction, so much as a union of the different Aeldari factions (Craftworld Eldar, Dark Eldar and Harlequins) that maintain their original faction, while at the same time getting a new one (the Ynnari one) and being allied at the level of Battle Brothers with each other. 

What this means is that all the limitations put in place by the various FAQs released by GW apply - with special regard toward units embarking on Battle Brothers transports before deployment, which you still cannot do. The big exceptions to this rule are Yvraine, the Visarch and the Yncarne, all of which have only the Ynnari faction and can thus start the game embarked on any transport vehicle you can take in the Reborn Warhost/Ynnari formations. Note that this applies only to Ynnari tranports, and that they cannot start, for example, in a Raider taken as part of a Dark Eldar CAD (since in that case they would be Battle Brothers with the DE and not part of the same faction).

Moreover, note that you can take the three aforementioned units in any Aeldari faction detachment as if they were respectively a HQ or LoW of that faction (yup, this means Harlequins can take CAD/Allied detachments).