The actual gameplay seems far less impressive.
All you do is capture points and summon defenders while capturing it. Kill enemy players to capture their points too.
Captured points fill a bar that makes the enemy giant vulnerable, and you have to go there and beat the defensless giant up to afflict a wound. Giants sit in their base doing nothing for 15 minutes or until 2 wounds have been afflicted.
Then there is the giant clash, where the arena gets smaller and all points are removed. I think all summoned defenders go attack the enemy giant, and somehow the bars until the enemy giant gets vulnerable fill in this mode and then you kill the defenseless giant for good.
Its nothing like actually fighting side by side with your giant, just another third person pvp title.