The English text is incorrect as it should say the reduction is increased from 30% to 50%, as noted in the japanese version:
Instead of:Quote:
風水士
羅盤の被ダメージカット率が約30%から約50%に引き上げられます。
Quote:
Geomancer
The amount of damage luopans take innately will be reduced from 70 percent to 50 percent.