I have thought for a long time that new arena weapons that have different elemental effects such as a Frost Bow or Shock 2 hander would be cool and for the longest while I though that Poison would be the logical choice for a Stamina Destro staff, but it felt weird and off. However, a Physical Destruction staff could work with its 'Element' being earth. Summoning mini quakes. Alternatively it could scale from Magicka and Spell Damage still but deal Physical Damage. A sort of Physical Damage based mage, although it might be hard with set options and CP.

(Insert Arena Name)

Ancient Earthen Staff:

Sand Storm:

Create a cataclysmic storm at the target location that builds for 2 seconds then lays waste to all enemies in the area, dealing 615 Physical Damage every 1 second for 7 seconds.

Earthen Rage:

Create a cataclysmic storm at the target location that builds for 2 seconds then lays waste to all enemies in the area, dealing 778 Physical Damage every 1 second for 7 seconds.
Earthen Rage blinds enemies in the area causing them to miss attacks 50% of the time.

Eye of the Storm: No Change.

Force Shock:

Focus all the kinetic energy in your staff and blast an enemy for 735 Physical Damage.

Crushing Shock: No Change.

Force Pulse:

Up to 2 nearby enemies will take 500 Physical Damage.

Tremor Wall:

Slam your staff down to create an elemental barrier in front of you, dealing 90 Physical Damage to enemies in the target area every 1 second. Tremor Wall slows enemies by 20% for 2 seconds on cast.

Tremor Blockade:

No Change.

Unstable Fissure:

After the wall expires it summons large pillars of earth that knock enemies in the air dealing 616 Physical Damage and stunning them for 3 seconds.

Destructive Touch:

Devastate enemy with spiky shards from your staff, dealing 3379 Physical Damage and causing them to bleed for 13515 Physical Damage over 10 seconds.

Destructive Clench:

Enemies hit are slowed by 60% for 2 seconds.

Destructive Reach:

No Change

Weakness to Elements and Susceptibility:

No Change:

Vigorous Drain:

Also applies Minor Staminasteal to the enemy for 23 seconds, causing you and your allies to restore 168 Stamina every 1 second when damaging them.

Impulse (Earthen Pulse):

Release a surge of elemental energy, dealing 615 Physical Damage to nearby enemies. Earthen Pulse sets enemies off balance.



Passives:

Rock Focus: Fully Charged Heavy Attacks stun enemies hit for 1 seconds.

Penetrating Magic: Your Destruction Staff abilities ignore 10% of the enemies Physical Resistance.

Overwhelming Force: Your Destruction Staff abilities have a 10% chance to apply Minor Maim to enemies hit.

Ancient Knowledge: Equipping this Earth Staff grants you 1500 Physical and Spell Resistance.

Destruction Expert: Killing an enemy with a Destruction Staff ability restores 3600 Stamina.