Alright, since we can "Magmus" the heroes
So I have two suggestions:
First
Siwftbale

as "Wolverine"
Appearance: The classic wolverine as everyone know him from the comic books and the cartoon movies. And of course the abillities' animations will be changed, in the game "Wolverine chronicles" (or whatever is) he has some other abillities such as:
Leap, spin, enrage, and so on.
First skill: Should be like the Swiftblade Spin but in this case, Wolverine goes wild and starts spinning, and right when you activate the skill he screams like usual (use the original sounds from the game or somewhere else).
Second skill : Counter attack should be a move that Wolverine makes: pulls out a gun he got from (god knows where) and shots back at the enemy and Wolverine will say "Have some". no matter if the enemy is a range or melee heroe. The Critical Strike will have an animation too: Wolverine screams again and he makes a nice an swift move with his blades, creating an "X" like hit at the targeted enemy. And finally his ultimate will be called "Wrath of Wolverine" but will do the same thing as Swiftblade's ultimate. Wolverine enrages and goes wild cutting everyone in his way, bouncing from target to target, and if there is only 1 targed, then he bounces and cuts it to pieces all the time, while the ultimate lasts.
In a short preview:
Name : Wolverine (Swifterine)
1st skill : Rage spin
2nd skill: Shoot Back
3rd skill: X-Slash
Ultimate skill: Wrath of Wilverine
All the skills do the same thing as Swiftblade's skills, but only with different animation and sound.
Here are 2 images you guys might use for his skills
This could be for his X-Slash abillity or his Ultimate
And this one could also be for X-Slash or for his Ultimate
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OK my second suggestion is about Engineer

as "The Spy Hacker"
It would be very nice if he looks like a "bad ass" soldier or a special forces kinda guy (black suit, mask on the face, or some night vision goggles on his head) Without the beard and the big belly. This guy should be fit and strong, with muscles everywhere and should be a bit taller of course. And his role will be something like a spy + gadget expert + and a sharpshooter.
He will be armed with a rifle, but not a rifle from the 19th sentury, but a rifle like M16 or smth way more modern with a scope on the rifle, and maybe a laser sight also, and the beggining of the laser could be seen from the gun. He walks normaly, a little bend forward, holding his rifle in his hands. And of course his speech will be changed, so as his skills, and the sound from his gun, when he shoots, the sound should be more (realistic).
His abillities:
Of course all will be the same, but the animations and sounds would be different.
1St skill: "The Keg" renamed to (frag grenade)
And of course he makes a move and throus a grenade, half the size of "The Keg" it should be visible to everyone too. Upon landing deals an explosion simmilar to The Keg's explosion, but the sound should be different and again more (realistic). And everything else for this skill is the same (mana cost, cooldown, dmg etc)
2nd Skill: "Steam Turret" renamed to Sentry Gun

He plants or throws a Sentry Gun, and when throwing the gun he sais or whispers, ("don't fail me baby" and "show em how it's made") and every player who sees this on their screen should hear the voice. Everything else for this skill is the same like Engineer's Steam turret.
3rd Skill: "Tinker" renamed to "jack n' hack"
This will do the exact same things as the "Tinker" skill does, but the animation will be how he uses a wiregun and electrifies the target, and of course the target suffers or benefits from the effect of this skill in addition if it's and enemy target or a friendly target.
Ultimate Skill: "Energy Field" renamed to "Power jammer"
The Hacking Spy throws a box with 2 antennas 1 red and 1 green and between them, electric sparkles go through, it can be attacked by the enemy. When this skill is activated The Hacking Spy whispers "Feeling POWERLESS? and then (Laughs)". Everything else about this skill is the same as the Engineer's "Energy Field".
In a short preview:
1st Skill: Frag Grenade
2nd Skill: Sentry Gun
3rd Skill: jack 'n hack
Ultimate skill: Power Jammer
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