Breaking a staff of power or staff of the magi has always been something that I've wanted to do. It's an epic way to go out and if it stops the BBEG then your character's name will be remembered forever (in that campaign world).It was the finale/last fight in a 1-13 campaign. The PC died (no teleport away), the BBEG saved and did not quite die from that but he was very close and the party cleaned him up on the next turn.
44 years of D&D and this is the first time I have seen it done at the table.
If I ever found a staff of power or staff of the magi, I would deliberately plan to do this in the campaign finale if I could possibly arrange it.It was the finale/last fight in a 1-13 campaign. The PC died (no teleport away), the BBEG saved and did not quite die from that but he was very close and the party cleaned him up on the next turn.
44 years of D&D and this is the first time I have seen it done at the table.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.