Possible variant

I have thought about possible variants recently, and here is a suggestion.

1. every base starts with 50 (or 60) hp

2. to play units you must deal damage to your base. A cost 2 unit deals 2 hits to own base.

3. Plot doesnt work in this variant

4. you can use credits to reduce the amount of damage to own base

5. there is a penalty to play big cards early, on turn 1 you can play a 2 card, on round 2 a 3 card, etc. But if you play a 9 card on round 1, you pay double for the remaining 7 cost, 16 hits in total on own base.

6. use leftover cards to remember which round it is

7. you can play as many cards as possible, as long as you deal damage to own base