You can find below some images of Arena items with and without rune.
XXXX is a stats unknown for this moment.
Click on the “+” to see additional information.
Weapon
Axe – Steal
Once in a while, the unit steals XXX1 % health from all enemies in a small area around themself for XXX2 sec.
Throne 11 : C
Scepter – Steal Arrows
Once in a while, the unit steals XXX1 % spell power from the enemy with the highest spell power for XXX2 sec.
Also, the unit fires XXX3 magic arrows at random enemies. Each arrow deals XXX4 (+Spell Power Bonus) magic damage.
Throne 11 : A
Shotgun – Shield on Shield
When dealing damage with a shot, the unit gains a shield equal to XXX1 % of the damage dealt. Stacks up to XXX2 times. The shield absorbs damage of any type and lasts for up to XXX3 sec.
Throne 11 : A
Armor
Tank – Damage around
The unit has a XXX1 % chance of dealing XXX2 % of the damage taken to all enemies within a small radius around themself.
Throne 11 : D
Tank – Magic Damage Explosion !
When the unit takes XXX1 damage, all enemies in a small radius around them take XXX2 magic damage. The ability triggers only once per XXX3 sec.
Throne 11 : C
Mage – Heal Party
Once in a while, the unit restores XXX1 % of their max health and heals the ally with the lowest health for the same amount.
Throne 11 : C
Mage – Shield Heal
Once in a while, the unit gains a shield that absorbs XXX1 damage of any type for XXX2 sec. While the shield is active, the unit restores XXX3 health each second to themself and all allies in a small radius around them.
Throne 11 : S
Archer – Aura
Once in a while, the unit granted an aura that enhances physical damage done by that unit and all allied archers by XXX1 % for XXX2 sec.
Throne 11 : B
Archer – Increase Damage
The unit’s damage is increased by XXX1 % for the duration of the battle.
The unit’s attacks restore health equal to XXX2 % of the damage they deal.
Throne 11 : Boss Clan