Patron Power Pools
Overview
Patron Power Pools are the villain equivalent of Ancillary Power Pools, and attempt to balance the Archetypes' builds. Unlike Ancillary Powers, Patron Powers must be earned by completing a story arc that becomes available for a Villain at Level 40 (though the powers themselves cannot be chosen until 41). The Villain can see Arbiter Rein, who then outlines the gravity of the situation in choosing an Arachnos Patron: Black Scorpion, Captain Mako, Ghost Widow, and Scirocco. Once selected, the story arc leads the Villain on a quest to become a true disciple of the Patron, with an Accolade rewarded at the end and the PPP being unlocked within the level selection screen.
The powersets also have the same name for each patron, regardless of Archetype. There are only four Patron Powersets to choose from with any Archetype, however the powers within them are complementary to the Villain's Archetype, similar to Ancillary Power Pools.
You must select a Patron before you can take any PPP powers. However, be very careful when making this choice, since Patron selection is permanent. Not even a Power Respecification will let you select a different patron or take powers from a different PPP, although a respec will let you change which or how many PPP powers you have, including dropping all of them. Also note that it is possible to play through CoV without choosing a PPP. The power-enabled levels (41, 44, 47, and 49) will still present the available legal choices from your primary and secondary sets and from the general Power Pools.