Mc Heroes

I know what you're thinking. FLYING AND SPAMMING ABILITIES NO WAY SO OP
But this won't be very op. Basically you can choose a variety of superheroes/villains from Marvel and Dc.
Obviously some would be more op than others, e.g: Aquaman vs Superman.
Classes- Players can play some classes for free, they could buy some classes with in-game currency, or donate for classes. I was thinking about if the donation classes could be unlocked by buying them directly and buying a rank that allows you to use them. I'm not gonna give a full list of classes, but I will give examples of some. Both heroes and villains get innate abilities, and they all get powers or gadgets.
Superman:
-Innate: Ability to fly for a short period of time, then goes on cooldown.
-Innate: Permanent strength 2
-Innate: permanent speed 2
-Power: Laser vision: Activate to do damage to enemies
-Power: X-ray vision: Activate to see through walls for a short period of time
-Power: Far vision: Activate to focus and zoom in, but become slow due to concentration (slowness 5)
-Power: Wind Breath: Activate to suck up air, then blow to knock back enemies

Batman:
-Innate: Ability to glide off high places
-Innate: permanent strength 1
-Gadget: Batarang: Throw to do damage
-Gadget: Grappling Hook: Right click to hook onto a block and pull up

Gamemodes: Of course we can't have a server without an objective.
TDM: Teams of 5 fight to the death.
1v1: Injustice: Gods Among Us style.
PvM: Players versus monsters. Up to 10 people join a mob arena and fight the undead using powers and gadgets.
Citizen Defense: Villagers are spawned randomly across the map (contained of course). Players have 30 seconds to find them. Then mobs spawn and they must defend the citizens.

Every time you win a game you get awarded a number of coins (you decide). In PvM the time is unlimited and you can't win, so a certain amount of kills get you coins.

Voting/Donations:
Voting- Voting gives you coins/a coin class unlock.
Donating- Donating gives several privileges:
-Ranks:
VIP: 2x coins, access to perks (I'll get to that later), and donation classes.
MVP: 3x coins, access to perks, donation classes, can unlock team bonuses (I'll also get to that later)

Perks/Bonuses
-Perks: Perks give you a slight advantage at the start of the game. I don't have any ideas, but feel free to share.
-Bonuses: Bonuses can be picked up while you are in a game. Click to use them. There are also team bonuses that effect the whole team (MVP ONLY receives at start of the game).
Examples: Automatically gain back all health, do damage to all enemies on the map, etc.
Team Bonuses: Gives the whole team a speed boost, regeneration, health, etc.

Tell me what you think about the concept. Not the examples I gave, but the concept. Feel free to share opinions that will benefit this idea. Thanks!