After Kerrigan rework and Malganis has entered the Nexus. I think it’s time to let our lord and savior Illidan to get some treatment for the classic heroes.
Here I have some ideas to help you out:
Immolation and friend and foe turn into baseline abilities
Metamorphosis rework
Hotfix mounting on lvl 10 metamorphosis
Sweeping strike change
Talent changes
Immolation is main core of Illidan’s kit. Illidan needs it for faster wave and camp clearing . He is very pve oriented hero and excels with it quite well. Although his pvp fighting skills are abit lacking. He mainly needs buffs to be more useful in 5v5 fights. In short Metamorphosis is meant for brawling but currently it works like a dodge ability (similar to X-strike but does zero dmg). To fix this problem, I suggest reworking the heroic ability. In exchange for splitpushing/soaking (The Hunt) Illidan can have more stamina and utility for team fights -> Metamorphosis if needed.
Metamorphosis (reworked, passive): transform Illidan into demonic form, (transforms directly after picking the talent, works like Varian’s specialization, the leap effect is removed). He gets 10(?) armor (like Greymane’s worgen form) and the form is now permanent. His basic abilities are enhanced too. Note: Now that Metamorphosis is permanent it’s easy to hotfix the mounting problem.
Enhanced abilities in demonic form for example:
Sweeping strike turned into Fel rush: Incinerating anything in your path, travel distance increased a little further. Addional effect: Fel rush leaves Fel flames on the ground. Doing damage over time for 4 seconds (damaging enemies who stand there). Replaces Immolation.
Dive renamed as Glide. Can “jump” over terrains. No longer needs target to use (work like Muradin’s Dwarf toss but with gliding animation, downside little slower to use than Dive.
Evasion renamad as Soul barrier. It gains addional effect: All damage avoided during evasion, shields Illidan upon expiration for the X % for 5 seconds (similarities between Illidan’s old talent Shadow Shield and Medivh’s Force of will). Works with Sixth sense talent.
Sweeping strike (changed): No longer increases basic attack damage, instead it’s direct damage is boosted to compensate (burst). This way Illidan can be built around auto-attack or Sweeping strike, which is ability oriented burst style.
Talents:
For example:
Battered assault (reworked, passive, lvl 1 talent): Quest (moved from the original Unbound): Hit 30 heroes with Battered assault. Reward: gain a second charge. If Sweeping strike hits 2 or more heroes the direct damage is increased by X%. Note: easier to get value from Nimble Defender, Blades of Azzinoth talents, Unbound and Hunter’s Onslaught etc.
Cursed mark of Illidari (active, long cd, lvl 7): brand an enemy with a demonic symbol: they do less damage X% to you and branded target takes Y% increased damage from (Illidan’s) all sources. It lasts Z seconds. Required melee range. Basic attacks lower the cooldown.
Glaive Throw (active, short cd, lvl 1): Throw a glaive at the target, dealing direct damage. The glaive can ricochet to 2 additional enemies within, slowing them by X% (works like Thrall’s chain lightning, it’s point and click ability). Note: This talent is useful when fighting agaist anti-melee or cc heavy team. Illidan can have some poke damage.
Imprison (active. long cd, lvl 4 talent): Imprison a hero. Stops the target, putting them Stasis for X seconds. Requires melee range and takes 2 second to activate. Instant cast (It works like Xul’s Bone Prison).
Sixth Sense (changed, passive, lvl 13 talent): Evasion grants illidan 50 spell armor for the whole duration. Taking 50% reduced damage from basic abilities.
Friend and foe: turned into baseline ability.
Immolation: turned into baseline ability. Might need some damage adjustment (nerfs) to his auto-attack or to this effect to compensate.
Unbound (changed, lvl 4 talent): Quest moved to talent Battered assault, can still move over walls and terrain. Decreases the cooldown of Sweeping strike every second by 1 when not taking any damage.
Blades of Azzinoth (reworked, passive, lvl 16 talent): Immolation/Fel flames damage is increased by X%. Hitting a hero with Immolation/Fel flames (contact is needed) causes opponent to burn, taking its full damage damage over time for 4 seconds. It doesn’t spread from target to target.
Darkness (active, long cd, lvl 13 talent): Illidan gets engulfed by darkness, entering Stasis. Covering Illidan from any attack towards him. During the effect, Illidan cannot use abilities (the allies cannot target him either) but he is able to move. It lasts 3 seconds (like ice block).
Rapid Chase reworked and renamed as Endless Chase (lvl 4 talent): Dive is unstoppable and it grants the effect for 1 sec. Preventing any crown control effect to Illidan.
Repeating Strike (talent 16): Hitting a Hero with Sweeping strike increases the damage output for the next Sweeping strike by X% for 5 seconds. It can be stacked up for 5 times.
Nexus Blades (changed, lvl 20): Basic attack speed increased by 20% and slow the enemy movement speed by 20% for 1 sec.
The Hunt (adjusted, lvl 10): The cooldown is decreased to 100 seconds.
Bolt of the Storm is removed.
Demonic Form (changed): Illidan learns a new ability Eye Beam (active R). Passive: The duration of stun, root and slow effects towards him are decreased by 50%.
Eye beam (active, short cd, part of Demonic Form talent): Blast enemies front of you, dealing heavy damage. (It works like the Scorching Laser of Triglav Protector). Skillshot ability, useful in long range fights.
Infernal Strike (active, replaces bolt of the storm, long cd): Leap through the air toward a targeted location, transforming momentarily into demon form, dealing small amount of damage to nearby enemis and stunning them for 0.75 seconds. Has the animation of the old Metamorphosis (the jump) with a little bit smaller range ~ about the same distance as bolt of the storm maybe?
Mention: With these kind of changes. Illidan can choose with 3 different play styles to head depending on opponent team or your own enjoyment. 1. is the classic auto-attack build, 2. Burst style with Sweeping strike or 3. Focusing more ranged poke in team fights (before finishing opponents off). Plus he can still go for pve with The Hunt and thanks to baseline Immolation. For the small battlegrounds with contant battles, Metamorphosis is a great choice.
That’s my two cents.
Edited: Fixed grammar and changed a part of Sweeping strike effect into reworked talent of Battered Assault. Added reworked talent Blades of Azzinoth. Changed Battered Assault talent. Now it has quest from Unbound. Added new talent Darkness. Placed talents into tiers. Added last words. Changed Battered Assault and Blades of Azzinoth further. Added new talents Endless Chase, Repeating Strike and Infernal Strike and reworked existing old ones (Nexus Blades and Demonic form etc). Eye beam is now included into Demonic Form talent. Reverted Nimble Defender back to its original talent tier lvl 13. Hunter’s mark renamed as Cursed mark of Illidari and moved to lvl 7 tier.