Mephisto is a calculating support, who enables and disables heroes
Difficulty: Medium
Mephisto is designed to bring great benefits but usually at a cost.
The health increase pairs well with heroes who benefit from % healing and also heroes in general who can sustain themselves which will also sustain Mephisto. Sort of like Auriel where it creates a feedback loop. The main difference is he excells with already tanky heroes, but can also enable squishy DPS to be more tanky such as tracer or murky. However, this also makes his fate tethered to whoever he has a soul pact with, so if they feed or get caught out, Mephisto also dies with them if hes nearby
STRENGTHS
AoE
Crowd Control
Survivability
WEAKNESS
Mobility
Single target
Burst healing
STATISTICS
1359 Health
1 attacks per second
82 Damage
Health regen 31.20
For comparison UTHER has...
2,156 Health
1 attacks per second
78 Damage
Health regen 2.90
Additional Notes:
He has insanely high health regeneration, similair to murky
-Mephisto uses mounts normally similiar to Azmodan
Toxic Shroud is overpowered. It's a better version of Tyrande's Trait with the armor reduction, given that it's AoE and deals damage, and since none of the heroes want their armor reduced it will just isolate the target. Maybe make it simply reduce armor by a flat 10 as long as they're nearby, since it having a stacking effect would probably fall off if they stepped away for a split second, and it would have a strong but not-so-strong effect so enemies can still have the option of sticking with their buddy if they want to risk the pain.
Kiss of Mephisto is also super broken, and has so much trolling potential. Using it on an ally just out of base would send them home or outright kill them. It can also be cheesed by simply using it as a cheap Ancestral if an enemy is low-health, which defeats the theme of the ability. A better idea would be to make it grant a shield equal to 100% of the hero's missing health, and takedowns reset the shield, but upon expiration they don't keep the health to make it less of a fight-winner.
I love the Trait and Demonic Empowerment, and Haunting Souls is pretty cool too. Spirit Harvest is weird, since Mephisto has never been about the whole Soul collection thing, and tying his only healing to him staying in lane is weird (not to mention he doesn't even have any waveclear to collects souls faster). Maybe just make it work on a regenerating charge system so it can be used at will, which is already an awesome idea I want to use.