I've added a bunch of Amonkhet Invocations to my INPRNT store. Except for Maelstrom Pulse, because I temporarily misplaced the PSD file. Will fix it next week.
Anyway, get em here: https://www.inprnt.com/gallery/igorikieryluk/
Dunno if updates to deviations propagate as watcher updates, so just in case they don't, Titans have been updates with a 3k by something file that should work for playmats. Prints are available here http://www.inprnt.com/gallery/igorikieryluk/titans/