Engange (insert name here) Mode:
Transforms Reality Hacker into (insert mech unit name here).

Positronic Charge:
Emits positronic charges around Reality Hacker, damaging nearby units.
Moderate Positronic Charge:
Same as above, except more time to actually deal damage, and less damage dealt.

I think the reality hacker should be a probe [edit: with stacked rines+firebats on it!]

Radar Jam: Spams text across the screen, pings everywhere for the enemy, makes the enemy hero go to P11, then back the the player, making them lost control, mess with their alliance status, random move orders, random screen relocation.

Orbital Bombardment: The Reality Hacker instructs an outer-space bombing vessel to fire deadly bombs around his vehicle. His transmissions to this vessel transmit intensive reality decoding data, which forces his vehicle to momentarily suppress its physical coordination. Each unit hit is dealt 525 damage. Lasts 4 seconds.

this spell will target random places in a 5 AoE. all units, including computer units will be affected.
transforms are probably a bit too cheap. unless i weaken him in other areas and prolong the transformation time?
this could be cool... although hes already got an AoE spell. i will think about it

Radar Jam: Spams text across the screen, pings everywhere for the enemy, makes the enemy hero go to P11, then back the the player, making them lost control, mess with their alliance status, random move orders, random screen relocation.

you could use multiple transforms, like tank-probe-scout-goon, so that the strategical values are different for each transform, but of course, make the alternate transformations somewhat weaker.

Tank: Can siege, i think that's strategical.
Probe: Well give it expensive pylon and cannons, and if you save up gas and put those in a good place, there, strategical value.
Scout: It can fly, so you could try to outrace a retreating hero and deal the final blow or transform into another form for that.
Goon: Well, it does extra damage to bigger units am i right? Well there.

Second quote: You can just ignore the passive and use the active, you can even make it instant damage.

Also another idea:

Critical Strike:
Summon-Transform into an unit for a powarrful hit and then transform back/un-summon.

Metal, I think if you want to create the ultimate AoS, you need to start by creating a standard unit as the player's hero, and then let them choose their spells and attributes. The purpose of the AoS is to allow players to play competitively in unique ways. By creating already built heroes, you're creating linear gameplay, that becomes predictable.

Look at the flaws of Temple Siege and try to create a game without those flaws.

The first and simplest suggestion would be to make all stat gains static and non-scaling. The player of the highest level by the end of the game will be the winner, not the player who invested most into damage+mana and can spam reavers of 500+ damage each. Mana gains increase the amount of spells you cast, and damage gains increase your base damage. That's unique ways of building your character, and creating real flexibility, instead of bottle necking your character into one or two different builds.

An HP gain of 10% should always be equivalent to a damage gain of 10%.

Metal, I think if you want to create the ultimate AoS, you need to start by creating a standard unit as the player's hero, and then let them choose their spells and attributes. The purpose of the AoS is to allow players to play competitively in unique ways. By creating already built heroes, you're creating linear gameplay, that becomes predictable.

Look at the flaws of Temple Siege and try to create a game without those flaws.

The first and simplest suggestion would be to make all stat gains static and non-scaling. The player of the highest level by the end of the game will be the winner, not the player who invested most into damage+mana and can spam reavers of 500+ damage each. Mana gains increase the amount of spells you cast, and damage gains increase your base damage. That's unique ways of building your character, and creating real flexibility, instead of bottle necking your character into one or two different builds.

An HP gain of 10% should always be equivalent to a damage gain of 10%.

In a story driven game, it’s always a good idea to have the player look at the main character almost as a mirror. There are three ways to approach this as I know of (please respond if you know more):

1. Give the player a character, with core values (usually the standard virtues) and let him/her 'tweak' it to match their attitudes. This is the most common road taken. FF7 does this, FF8, Legend of Legia, god the list goes on and on. Sometimes, they can go as far as to make alternate endings for each due attitude.

2. Create-o-matic character generator! I'm not really big into these, as my bias will tell. Here you actually get to make a character however way you want! Even yourself, what could be more immersive than that? The problem is that no matter how much time you spend on the limited details you can adjust, the end result will always be a body builder in skin-tight clothes. "Yeah that's totally me". If you decide to make the character at least half representational of yourself, or if the game just doesn’t give you the option (ie freeware MMO’s) to make your character a god, the result is even worse. The create-o-matic then spits out a starved crack whore that has escaped from the circus. It’s really one end of the pole or the other. When you get bored of the game, you find yourself trying to make the sickest character that only a mother could love… if she was drunk. Wait, I haven't started on the story yet! Now you have to guide your little crack whore through the game. In the end you say "Wow, I (the character who symbolizes you) had some unique adventures, and I saved the day in my own way!" You enjoyed the experience so much that you tell your friend to come over, so he could try it too. It’s all smiles until you notice he is the same cool super-buff model you chose. What are the odds?! As the story progresses you realize it's the same cookie-cutter dialogue that you called unique. Does anyone remember playing The Sims (1), and how EVERYONE picked the same the guy with the shades and bleached spiked hair?
This reined is the supreme approach to character immersement
On paper, this looks like the best idea on Earth, but in practice it just falls to pieces.

3. Another biased argument figuring that this is the approach I am probably taking in my fighter.
You choose the character that suits you best from a selection of (hopefully) different characters. One of the only draw backs of this approach is that it often re-enforces stereotypes. The character will embody what the world thinks a person of his/her type consists of.
Anyways, here a player looks the character over, and reads their bio. If something resonates with the player this will become his avatar. This is what I feel selection should be based on. Most of the time though, it depends more on finding the character that isn't exactly balanced and gives the player an edge. Even if the back-story for the character makes her a crack whore circus runaway.
Just to point of the obvious, here are some advantages to using the method over the others:
1. A player can have a unique experience as opposed to his friends.
2. Can learn a lesson, or answer a question that they could be dealing with.