Combat Caster

You've practiced making your powers more difficult to avoid, learning techniques that grant you the following benefits:

• When a creature rolls a 1 on the d20 roll of a saving throw against a power you cast that deals damage, they instead take the highest number possible for the damage die.
• You learn one at-will power that requires a saving throw. Your casting ability for this at-will power depends on the power list you chose from: Wisdom or Charisma (depending on power alignment) for force powers or Intelligence for tech powers.