NIS America has released a new trailer for the upcoming SRPG from Kadokawa Games, Natural Doctrine. This trailer shows off some of the multiplayer elements and boasts that it supports cross-play between the PS3, PS4, and PS Vita.
You can also recruit enemies from the single-player campaign to challenge your friends in the multiplayer portion, as well as buy cards to build up your own deck. There are also different online modes that will allow you to either play with or against your friends.
Natural Doctrine will be made available for the PS3, PS4, and PS Vita on 23rd September.