Powerup: UPGRADE

[libkush]

Name: UPGRADE
Category: Defence
Type: Immediate
Timeout: None
Cost: TBD
Data attached: None
Action:

• Change the AttackDefProblem's problem to a Problem with difficulty_level += 1 if difficulty_level isn't maxed out
• Subtract cost (if any) from team's points

[2S00B5]

I want to take this issue.