The Battle of Bywater is a rare Sorcery card from The Lord of the Rings: Tales of Middle-earth (LTR), collector number 757. Current market price: — (foil $3.88), TCGplayer market prices via Scryfall.
Destroy all creatures with power 3 or greater. Then create a Food token for each creature you control. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")
All The Lord of the Rings: Tales of Middle-earth cards and prices