Rasputina + Ice Gamin blasting

[Terwox]

Consider the following situation:

• Rasputina is casting December's curse on her Wendigo because it has been naughty.  
• Before this, an Ice Gamin used Bite of Winter to give Frozen Heart models +1 damage to attack actions if they're within 6, and he's standing near Rasputina.  
• A shifty Malifaux rat is standing next to the Wendigo.
• Rasputina hits the Wendigo, and flips severe damage.  
• Her damage line is 2/4/5.  
• She blasts onto the rat.  
• Does the rat take 4 or 5 damage from the blast?

[Bengt]

5. Bite of Winder applies as the Rat is taking damage from Rasputina's attack action.