The Queen

The Queen will have a skill called Ice Magic which works like any other skill, but is very useful in many situations. She can use it carefully (+2 to TNs), or at it's full power. The latter will have unintended consequences on her surroundings, and friendlies or innocents will likely get hurt as her powers go a little out of control. If she hurts an innocent or friendly with her powers, it will freeze her heart over a little. Using it carefully will never cause such effects. She may get lucky, and she can always go full power if there's no innocents or friendlies around.

The Queen will not have a Consequences bar either. Her Ice magic will instinctively protect her from grave danger, at the effect of freezing her heart over each time the damage flows from her Stress to what otherwise would be her consequences. For each point of stress in excess, one part of her heart will get filled.

The Frozen Heart

The heart is divided in 12 parts. Each time the Queen uses her powers at full and (accidentally) damages friendlies, she will freeze over 1 part of her heart (no matter how much damage). If she kills an innocent or friendly with her power, 3 parts get filled. If she takes damage over the amount that her stress bar can handle, her magic will protect her instinctively (creating protective ice-shields or spikes), returning the same amount to the source of the damage, as well as freezing her heart over for the overflow.

If the Queen's heart is ever fully filled (all 12 parts used), she will turn into a Snow-Queen. A callous heartless monster, that will freeze the world and everyone on it...

The Queen can regain parts of her heart by doing unselfish acts, or acts of true love.