Metal Plate (3.5e Equipment)
From D&D Wiki
Barely a sword, it just a big sword-like metal plate with a hilt. The blade is 7 ft. long and 3 ft. wide. Barely usable by any men, this weapon cannot be used mounted, when used mounted the horse fall thank to the impressive weight. Only someone with a strength of 18 or more can use it, with a -4 penalty. The penalty reduce to -3 with 20 Strength, -2 with a strength score of 22. The penalty decrease to -1 at 24 Strength but only disappear at 25 Strength.