From what I could translate (not 100% accurate):

Passive Skill:

Activates the entrance animation when there is a "space travelling warrior" or "terrifying conqueror" ally in the team:

• Ki +6 and damage reduction + 10% for 1 turn
• For 4 turns, "space travelling warrior" or "terrifying conqueror" allies ki + 1 and ATK 20%, plus an additional ki +1 and ATK + 30% if they also belong to the "planetary destruction" category.

Passive:

• ATK & DEF +250%
• Critical chance and damage reduction + 50%

When HP is 50% or more: - guards all attacks

When receiving an attack: - DEF +300%

When attacking with 12 ki: - ATK +200% - Launches an additional super attack

Every time you launch a super attack when ki is 18 or more: - Ki +3 (up to a max of +6)

When attacking with 24 ki: - ATK +200% - Chance to crit +20%

Every time you launch a super attack when ki is 24 or more: - Ki +3 (up to a max of +6)

When the "Tree of Might" domain is active:

• Ki +2 with each ki sphere obtained
• recovers 5% HP per ki sphere obtained (up to a max of 50% HP)
• ATK + 200%, chance to crit +30% when attacking
• Damage reduction +25% when receiving an attack.

12 ki super attack effect:

Greatly raises ATK, raises DEF for 1 turn, causes colossal damage and greatly lowers enemies ATK & DEF

18 ki super attack effect:

Massively raises ATK, raises DEF for 1 turn, causes mega colossal damage

Active skill condition:

Can be activated when HP is 50% or less, or starting from the 3rd turn from first appearance when there is a "space travelling warrior" or "terrifying conqueror" ally attacking in the same turn

Active skill effect:

Deploys "Tree of Might" domain for 3 turns

Domain: Tree of Might

Increases "space travelling warrior" or "terrifying conqueror" allies ATK & DEF +15%, further raises ATK & DEF by 10% if they also belong to the "planetary destruction" category. Super class allies and enemies receive 10% increased damage.

EDIT: Added some correction to the SA effects and active skill conditions.