When performing Whirlwind, graphically, your shield appears to be hitting the enemy also, especially if its a larger shield, such as an aegis.
Therefore, shield damage should be included into the whirlwind damage calculation.
When performing Whirlwind, graphically, your shield appears to be hitting the enemy also, especially if its a larger shield, such as an aegis.
Therefore, shield damage should be included into the whirlwind damage calculation.