Can Someone Try Playtesting My Game WITHOUT A Physical Prototype?

I'd at least make some cards. It doesn't have to be anything amazing. You could use clip-art or royalty free stock photos to make a printsheet of every card in your game. At the end of the day, if you won't put in the effort why would anyone else?

I didn't play the game, but I did review the text you included for the cards. Here are some quick notes.

Form-Helicopter and Form-Plane both have 0 Health. According to your rules, it seems they would be destroyed as soon as they were placed.

Toy Box needs work. It heals units it swaps (those that are put back in the deck, that is), unless you provide some way to track health for damaged units. However, since it must be played in the front row then it's likely it will become the next target, and therefore not be used at all. I'm unsure if this is the effect you want for this card.

When you revise your cards, be sure to clarify the use of the words "can" and "may" and "must."

I also strongly recommend you reduce the power levels of the cards to a range of 1 through 10 or 12. Additionally, the game should include tokens or clips to account for the bonuses granted by other cards. It will be a challenge for you and your players to keep track of these bonuses when cards become exhausted (it seems to me like the tokens would be fiddly, slow down game time, and maybe even shift to other cards or regions of the play area accidentally as time goes on).

The text for Spinning Top can confuse players. It seems to me that the text is redundant, and it should simply read something like, "When this card is activated or targeted, throw a die. The result indicates its Agility: 1 = ..."

Regarding Form - Van: are all stats boosted, or just one? Does the boost remain from round to round? Do these boosts stack? Does the Form - Van heal itself with this ability?

///

This is a start, and there's potential in your idea. I suggest you embrace your enthusiasm you have for this idea, channel it into the energy you need to write some clear rules, and create some basic cards for a workable prototype. Good luck! :)

I suggest you streamline the majority of your cards to a range of 1 through 10 or 12 (using whole numbers). For the cards that don't neatly fit into a clearly-divided number when you make your changes, just round up or down.

Ask yourself: is the math the fun part of this game? If the answer is no (and I have an inkling this will be your answer), then simplify it so the player doesn't have to do any more than necessary.

Secondary question.. there's the implication that players are selecting the elements of their deck. Why? and what are they selecting FROM? Do players all need their own copies to play this? Is there sufficient strategy here to make deck-building an interesting part of the game?

Well, to clarify my question, it sounds like you're making a CCG. Or at least a game where every player has to have bought their own deck. I think that's hugely problematic from a real-life standpoint. If I buy the game, I literally can't play it with anyone. If I want to play it with my family, I have to buy multiple copies right off the bat.

The "Why?" question is why people are constructing decks in the first place, rather than just choosing randomly. Among other things, constructed decks are far far more likely to expose/create broken mechanics. And of course, without that, you could just have one pack and play with your friends.

The reason you give is that you think maybe people will be able to construct along a theme, but you don't have that part in the design at this time, so I wouldn't consider it a core part of your concept...