[Fyron]

Ok, I just finished my test. "Planet - Change Ground Defense" definitely does not do anything.

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Scenario 1


Attacker: 450 Large Troops

Defender: 72 LT + 240 Militia


Results

Test 1:
Attacker: 387 LT survive
Defender: 0
Rounds: 3

Test 2:
Attacker: 384 LT
Defender: 0
Rounds: 3

Test 3:
Attacker: 384 LT
Defender: 0
Rounds: 3


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Scenario 2


Attacker: 450 LT

Defender: 72 LT + 240 Militia, Ground Base (+500% ground defense)

Test 1:
Attacker: 383 LT
Defender: 0
Rounds: 3

Test 2:
Attacker: 384 LT
Defender: 0
Rounds: 3

Test 3:
Attacker: 384 LT
Defender: 0
Rounds: 3