Where can you get the TM Blizzard and before fight Champion Lance in Pokemon SoulSilver?

You can obtain TM Blizzard in Pokemon SoulSilver after defeating Champion Lance. It's located in the Victory Road area, specifically in the second room where you find the rare candy (the one with the dark blue floor).

Here's how to get it:

1. Defeat Champion Lance and become the Pokemon League Champion.

2. Return to the Victory Road.

3. Enter the second room with the rare candy.

4. The TM Blizzard is lying on the ground.

Remember, TM Blizzard teaches the move Blizzard, a powerful Ice-type attack that is very effective against Dragon, Grass, Flying, and Ground-type Pokemon. It is a valuable tool for battling Champion Lance, who has several Dragon-type Pokemon in his team.