Acquisition of skills [Absolute Defense][Unyielding Will][Defense Aura]
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Skill: Absolute Defense (Seven-turn)
Level: Level 1
Cost: 50 million
Effect: Upon activation, enter a state of absolute defense for 60 seconds. In this state, the user is immune to damage from Legendary class powers and below.
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Skill: Unyielding Will (Seven-turn)
Level: Level 1
Type: Passive
Effect: Passively become immune to mental attacks of 30 million or less. The effect of mental attacks above 30 million is reduced by 70%. Comes with the Secret Technique of Unyielding Will (requires enlightenment).
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Skill: Defense Aura (Seven-turn)
Level: Level 1
Cost: 30 million
Effect: Upon activation of Defense Aura, it increases the defense of ally units within a 1000 meter radius by a fixed 20% and an energy defense of 100%.
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The three Seven-turn skills that got hammered onto Old Four didn't transform its strength. It just made Old Four a little tougher.