Gate Keeper
The White Fiend guards the entrance to the White Dragon Lair in the West Katarina ice cave.

You will meet him again at Zophars Pinnacle. But then he will be no real match for you anymore.

Coma Blast
Pinky will cast the Coma Blast which leaves all party members mute who are not guarded by special equipment.

Flash Trash
Flapping wings indicate an upcoming (or should I say downcoming) flash hitting all in the near region.

Icicles...
...will fall from the ceiling when the sportive White Fiend demonstrates that he even can fly.

All party members will be effected.