The developer did an awesome job in the latest update. The following features are added:
1. P vs P battling: There is a leader board and apparently 1st, 2nd and 3rd to have the most stars will receive a large amount of Gem reward (probably in a weekly basis?).
2. Boss Battle: The Boss haven’t appeared yet but we’ll see how they will push this feature out in the future.
3. Giant Fusion: By fusing the same Giants with different attributes will create Giants with awesome particle effect.
4. Variation Station: You can change the attribute of the Giants by putting them in this Variation Station. It cost a lot of Gems to purchase this but will definitely make it easier to collect Giants with different attributes and fuse them.