Burst of sunlight self damage prevention window

Hi

I was trying to figure Burst of sunlight prevention window. Can you prevent it and your opponent strike with hidden strength? Can you prevent other environmental damage with it? I mean my burst, opponent strike and opponent's environmental damage? Is all happening on normal strike resolution?

many thanks in advance

Burst of Sunlight

Blood Sorcery Strike: 1R aggravated damage. This striking vampire also takes 1 aggravated damage.
Superior Blood Sorcery Strike: 2R aggravated damage. This striking vampire also takes 2 aggravated damage.

Hidden Strength

Fortitude Prevent X+1 damage.
Superior Fortitude As above, with 1 optional press.

Carrion Crows

Only usable before range is determined. A vampire can play only one Carrion Crows each combat.
Animalism The opposing minion takes 1R environmental damage each round this combat during normal strike resolution.
Superior Animalism As above, but for 2R environmental damage.