Current max kingdom (level 20, power 30) 
Prestige 50:
- Tribute Chance: 56% 100%
- Tribute Bonus: x5.0 x5.0
- Skill Bonus: +7 +7
- Mana Mastery: +10 +50
- Hoard Bonus: 100% 120%
- Gold Income: +2045 +3000
- Mythstone Bonus: 10% 20%
- Shiny Dust Bonus: NA +6
- Team Bonus: Tier V Tier V
Please let me know if you see incorrect info here.