So with a Nexus 7, I finally got introduced to the world of mobile device games. Whee? I picked up Angry Birds: Star Wars quickly enough. Simple, but not very engrossing for me. I also picked up Ayakashi Ghost Guild , a "collectable card" game of sorts to check out, and a bit later Transformers Legends , in the same genre. Difference models and different experiences with those two, though they shared much of the same format - cards of characters with levels of rarity and power, use of cards to level up others, a limited form of PVP against other people's decks, limited-period events with special rules and such in place... With Ayakashi, I sort of got into it for a while, but after a month or two ran into an effective ceiling for free players. Attribute points start out as a limit to your ability to use your best cards at once, but after enough levels, it's more a lack of cards that have high enough requirements to use all your attack/defense spirit. And higher-requ