Icy is the leader of the Trix, the Witch of Ice and the oldest and strongest of her sisters Darcy and Stormy. She wants to conquer the Magic Dimension and become the strongest witch in the universe. She was defeated once and for all when the Winx sealed her outside of time in Limbo.
Equipment/Bases of Operation
Spark of the Dragon Flame
- Froze the Dragon Flame.
- Harmed Daphne when she was a spirit.
- Took a small spark of Bloom's power.
- Made a school levitate.
- Turned a tree into a human in Issue 35.
- Time travel. 
- Icy's name comes from "Ice" which is also her power.