Yesterday i was thinking about some skills that maybe will be usefull for the next update...
Necromancer :
[ Death Obelisk ] : summon a death obelisk (model of the outland obelisk), the obelisk gives an aura that the necromancer and his summons get bonus in the normal attack of [10%] and attack speed of [10%] also reduce the attack speed of the enemy around by [10%]. the obelisk lasts for 30 sec and is invulnerable.
45 sec of cooldown. (maybe a talent that inscreases the duration for 45 sec)
Monk :
[ Finger of god ] : Channel all holy energy around for 1.5 sec and cast a single attack that deal a burst of energy at a single target dealing [SP x 1.5] stunning it for 2 sec and after the stun it receive a secondary damage [AGIx1.5] also inscrease the health of the monk by [SP + AGI]. 60 sec of cooldown. (maybe a talent that remove the cast time)
Berserk :
[ Champion's Flag ] : The beserk place a flag in the ground (maybe the orc rally flag model) , that lure monsters that are [1000 range] close, also it inscrease the aggro generated by the beserk by 15% and descrease all other ally aggro by 10%. the flag lasts 30 seconds. 50 sec Cooldown. (maybe a talent that inscrease the duration for 10 sec)
Druid :
[ Storm's Totem ] : Place a totem (maybe the healling ward model) in the ground that creates a lightning storm around the totem in a [1000 range ], the thunder's are random if there is more than 1 enemy at the range, the lightning storm hits every 0.5 sec for 5 seconds dealling [SPx0.75] lightning damage, if the unit is soked with water deal a bonus of [SPx0.15]. The totem lasts 5 sec. 35 sec of Cooldown.
(maybe a talent that inscrease the duration for 1 sec.)
Bishop :
[ Pray for the Sins ] : Remove all the negative effects of all the ally and prevent it from return lasts 30 sec. Cooldown of 75 sec.
(maybe a talent that descrease the cooldown for 15 sec)
Crusader :
[ Angel's Cry ] : Restore all ally health by [10%] per 10 sec, reduce all the damage received by 5% and also gives the crusader a bonus holy damage in the offensive skills of 10% for 15 sec. Cooldown of 90 sec.
(maybe a talent that reduce the damage received by more 5%).
Bard :
[ Silence Melody ] : The bard dash foward dealling [APx3] damage and pass through any enemy, the enemy damaged get silenced for 2 sec (1 sec on bosses). Apply battle rhythm. Can only be used with an instrument equipped. Cooldown of 30 sec. (maybe a talent that gives a bonus lightning damage of [0.25xSP].
Hunter :
[ Backflip ] : The hunter make a backflip (jumps back for 500 range) while shooting 3 arrows in a cone dealing [APx3.0] Damage and reducing the aggro generated by 15%. Cooldown of 60 sec. (maybe a talent that reduces cooldown for 45 sec.)
Assassin :
[ Shuriken's Toss ] : Throw a storm of shurikens at a area dealling [AGIx1] per second during 3 seconds the shuriken reduces the enemy movement speed for [15%] for the duration 3 sec. Cooldown of 20 sec. (maybe a talent that the assassin can use that skill when using invisibility).
Sorceres :
[ Arcane pulse ] : Deal 3 pulse of arcane magic in a 360° each dealling [SPx2] and knockback all enemy. Cooldown of 50 sec. (maybe a talent that reduces the cooldown for 30 sec).
Hexblade :
[ Chain's of death ] : Etangle the target and deal [SPx1.5] damage per second during 4 sec (2 sec etangle duration at bosses but the damage continues). Cooldown of 10 sec. (maybe a talent that stuns the target at the end of the etangle).
Psion :
[ Illusion field ] : Create a field of psionic energy that inscrease the evasion of ally for [10%] the field have [1000 range] the psionic field also regenerated [1%] of the mana every 5 sec and Lasts 30 sec. (maybe a talent that inscrease the mana by more 1%).
(the model of the field could be the invulnerable field cinematic)
Necromancer :
[ Death Obelisk ] : summon a death obelisk (model of the outland obelisk), the obelisk gives an aura that the necromancer and his summons get bonus in the normal attack of [10%] and attack speed of [10%] also reduce the attack speed of the enemy around by [10%]. the obelisk lasts for 30 sec and is invulnerable.
45 sec of cooldown. (maybe a talent that inscreases the duration for 45 sec)
Monk :
[ Finger of god ] : Channel all holy energy around for 1.5 sec and cast a single attack that deal a burst of energy at a single target dealing [SP x 1.5] stunning it for 2 sec and after the stun it receive a secondary damage [AGIx1.5] also inscrease the health of the monk by [SP + AGI]. 60 sec of cooldown. (maybe a talent that remove the cast time)
Berserk :
[ Champion's Flag ] : The beserk place a flag in the ground (maybe the orc rally flag model) , that lure monsters that are [1000 range] close, also it inscrease the aggro generated by the beserk by 15% and descrease all other ally aggro by 10%. the flag lasts 30 seconds. 50 sec Cooldown. (maybe a talent that inscrease the duration for 10 sec)
Druid :
[ Storm's Totem ] : Place a totem (maybe the healling ward model) in the ground that creates a lightning storm around the totem in a [1000 range ], the thunder's are random if there is more than 1 enemy at the range, the lightning storm hits every 0.5 sec for 5 seconds dealling [SPx0.75] lightning damage, if the unit is soked with water deal a bonus of [SPx0.15]. The totem lasts 5 sec. 35 sec of Cooldown.
(maybe a talent that inscrease the duration for 1 sec.)
Bishop :
[ Pray for the Sins ] : Remove all the negative effects of all the ally and prevent it from return lasts 30 sec. Cooldown of 75 sec.
(maybe a talent that descrease the cooldown for 15 sec)
Crusader :
[ Angel's Cry ] : Restore all ally health by [10%] per 10 sec, reduce all the damage received by 5% and also gives the crusader a bonus holy damage in the offensive skills of 10% for 15 sec. Cooldown of 90 sec.
(maybe a talent that reduce the damage received by more 5%).
Bard :
[ Silence Melody ] : The bard dash foward dealling [APx3] damage and pass through any enemy, the enemy damaged get silenced for 2 sec (1 sec on bosses). Apply battle rhythm. Can only be used with an instrument equipped. Cooldown of 30 sec. (maybe a talent that gives a bonus lightning damage of [0.25xSP].
Hunter :
[ Backflip ] : The hunter make a backflip (jumps back for 500 range) while shooting 3 arrows in a cone dealing [APx3.0] Damage and reducing the aggro generated by 15%. Cooldown of 60 sec. (maybe a talent that reduces cooldown for 45 sec.)
Assassin :
[ Shuriken's Toss ] : Throw a storm of shurikens at a area dealling [AGIx1] per second during 3 seconds the shuriken reduces the enemy movement speed for [15%] for the duration 3 sec. Cooldown of 20 sec. (maybe a talent that the assassin can use that skill when using invisibility).
Sorceres :
[ Arcane pulse ] : Deal 3 pulse of arcane magic in a 360° each dealling [SPx2] and knockback all enemy. Cooldown of 50 sec. (maybe a talent that reduces the cooldown for 30 sec).
Hexblade :
[ Chain's of death ] : Etangle the target and deal [SPx1.5] damage per second during 4 sec (2 sec etangle duration at bosses but the damage continues). Cooldown of 10 sec. (maybe a talent that stuns the target at the end of the etangle).
Psion :
[ Illusion field ] : Create a field of psionic energy that inscrease the evasion of ally for [10%] the field have [1000 range] the psionic field also regenerated [1%] of the mana every 5 sec and Lasts 30 sec. (maybe a talent that inscrease the mana by more 1%).
(the model of the field could be the invulnerable field cinematic)

Gaias doesnt even have PVP to justify it that way plus this skill seems like the worst skill for PVP... 
.....