Enhanced Bowstring (3.5e Equipment)
From D&D Wiki
A cord of incredible draw power, adds double damage to bows, shortbows and crossbows. The String can be crafted with a successful roll of 35, with 150 gold in components. It can also be bought for 1500 gold in town. These strings can be woven together, enhancing their power, but at a severe cost.
- 1 string: strength required 15
- 2 strings: strength required 20
- for strings past 2 strength required increases by 10
Adding extra strings requires magical intervention to bless the strings with additional power. A spellcaster of level 30 can accomplish this with a roll of
- 20 for one additional string
- 30 for two additional strings
- +15 for each string past two
With this, few spellcasters can endow a weapon with too immense of damage. That is not to say it is impossible, only that it will require far more than average means to accomplish.