In all Arena, the skills and Runes with Slowing down enemy speed, frozen restriction and teleport are the top skills.
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Shock Pulse: It is the basic skill of Wizard no matter you are in PVE or in PVP. It should go with Piercing Orb.
Teleport: In Arena, teleport is the biggest advantage of Wizard. What's more, with the rune skill of Wormhole which will create two illusions. It will have great importance in attack and defense. In attacking, it will mislead the enemies and can not control the damage output. In defense, it is basic to flee and dodge.
Diamond skin: It is the key skill to survive in the long battle of Arena.
Energy Armor: Choose the resistance upgrade 40%, plus the resistance stats of the gears which made you suffer less when foes blow you.
Blizzard with rune snowbound depends on the skill familiarity. Blizzard is a ongoing restriction skill. But it lacks the location and exploding effect. Snowbound can locate the enemies well and win a good time to give damage.
hydra with Frost Hydra Rune is better than the Venom Hydra because it has a better effect of slowing down the enemy speed to limit the movement of enemies.
Blur: It will decrease the damage of almost 20%. In Arena it is almost true that it is a melee battlefield. In long distance Warbattle, you can dodge to gain distance.

Illusion: this picture shows you the reason why it is important.

Paralysis: 1.5 seconds stun will save you from enemy threaten.
It all depends on the personal analysis in terms with the skill combinations.
3 Arena dodge and damage output point

The column in the Arena is always the friends of Wizard. When the enemy are firing at you, you can piercing the column to avoid the damage and make the enemy lose the target, The red dot of the picture is the place of Wizard output place. Of course it will change in the way the fact changes.
Just looking forward to the coming of Diablo 3 Arena PVP.