Final answer:
In Arthurian legend, the Lady of the Lake assists Merlin by providing magical gifts, most notably the sword Excalibur for King Arthur.
Step-by-step explanation:
When Merlin requests help from the Lady of the Lake, she bestows upon him magical gifts that are central to Arthurian lore. These gifts often include the legendary sword Excalibur, a symbol of divine kingship and power bestowed upon King Arthur. The enchantment surrounding the Lady of the Lake, Merlin, and their interactions play an integral part in the mythos of Camelot, lacing the tales with themes of chivalry, magic, and destiny.