Sword of the Six Sages

The Sages sentenced Ganondorf to death on the count of treason following Link's return from the future Imprisoning War. They used a sacred glowing blade to impale him while he was chained to a rock in the Mirror Chamber. This proved unsuccessful, and he emerged alive, killed a sage, and ripped the sword from his gut. The worst it did was leave a large glowing wound on his gut.

Ganondorf would carry this around in a sleeve as his cane/rod, and used it in combat against Link during the final battle.