paladin primary skill

[R268504349]

which is good for pvp battle between wrathstrike, shield slam, and thunder clap?

[R256223757]

Short answer: You can never go wrong with SS.
Slightly ambiguous answer: Each has merits. Lowering PD can be neat for a physical team and nyssa. If one has high attack TC can devastate a line. Depends on gear, set up and formation goal.

[mugimugikun]

shield slam or wraith strike. if your damage is so high and your char can withstand enemy's attack then go for wraith strike. it will be great if you have high damage and your mercs are hitter too