Recs.
Updated
Spirit Lords is a free-to-play action RPG for Android that includes in-app-purchases that range from $0.99 - $99.99 per item.
SpecsUpdate
Pros
Pro Fun collecting and fusion aspects
There are collectable spirits in the game, that add new player abilities. These spirits can then be fused in order to upgrade the abilities they grant. This makes for an addicting aspect, trying to collect the spirits one needs in order to level up their players abilities.
Cons
Con Hobbled by wait times pay to win mechanics
Spirit Lords, like most free-to-play games, utilizes forced wait times that can only be mitigated by paying real money (or just waiting). On top of this, there is also equipment that is highly powered that can only be purchased through in-app-purchases, making the game pay to win by forcing payment for equipment that makes the game easier and removes false walls. While many can ignore these false limitations, they are arguably an annoyance only set in place in order to earn money through peoples impatience.