If the player uses a Flat Character, the boards will be 1.2x as large and deal 1.2x damage. These bonuses are multiplicative with base weapon damage and area.
Flattening Board is affected by the area increase of Knightly Milk.
Flattening Board's lower attack time limit can be achieved at 281% Haste.
Enchantments
Following enchantments are available to Flattening Board: