Staff of Favorable Winds (Patreon)

Staff, very rare (requires attunement by a tempest cleric, druid, sorcerer, warlock, or wizard)

While you hold this staff, areas affected by strong winds do not count as difficult terrain for you. 

The staff has 10 charges. While holding it, you can expend 1 or more of its charges to cast one of the following spells from it using the required casting time as well as your spell save DC: cone of cold (5 charges), feather fall (1 charge), gust of wind (2 charges), or wind wall (3 charges).

In addition, while holding the staff, you can create a harmless sensory effect using the air. You can cause leaves to rustle, slam shutters closed in a sudden gust, or cause your clothing to billow dramatically.

The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff turns to dust and is blown away by a sudden flurry of wind.

Akmenos saw the sails on the horizon. There were too many for this small keelboat to deal with, much to his disappointment. He tapped his staff against the deck, the sound of its metal cap resounding against the oaken floors. The wind was suddenly emboldened, billowing out their sails and hastening them forward.

He climbed atop the masts and sat in the crow's nest, enjoying the wind against his hair, fluttering his cloak, and watched the black sails fade beyond the horizon.