Retcon.
Also, silver's been associated with monster killing for centuries.
http://en.wikipedia.org/wiki/Beast_of_G%C3%A9vaudan
The rules changed. It's a retcon.
Originally posted by ScreamPaste
They actually weren't weak in OoT, what they did wasn't just stunning Ganon, they took him out of the air entirely. Something his own power couldn't do.
WW has a cutscene showing them being awesome, TP they actually aren't as important in, oddly.But yeah. I think we all agree. 🙂
Light Arrows in OoT lacked the killing power of the Silver Arrows in the earlier games and the Light Arrows in the later games. They're supposed to be the ultimate weapon of the Zelda series (besides the Fairy enhanced Master Sword in LttP).
Silver has always been a material of great magic properties in the Zeldaverse (all 2? games that it was in), and definitely can't be compared to the silver ore we have in reality.
Both times that I recall silver being used as an item, it was displaying pretty amazing attributes. The Silver Arrows had the power to bring Ganondorf down in combination with the Master Sword in LttP, and the Silver Gauntlets granted Link superhuman strength in OoT.
So, Zelda silver is pretty good, and is clearly not normal silver that you might see in other games or real life.