In a saucepan, combine 2 cups of water, ¾ cup of mango nectar, ¼ cup of granulated sugar, 2 tablespoons of dragonfruit powder, and 1 teaspoon of citric acid. Heat gently over medium-low for about 5 minutes, whisking occasionally until the sugar fully dissolves and the mixture is smooth. Remove from heat and let cool before transferring to a jar.

In a small jar, mix ½ cup of barista-style oat milk, 2 tablespoons of strawberry syrup, and ¼ cup of soy milk. Secure the lid tightly and shake vigorously for about 30 seconds, or until the mixture expands and becomes pale and fluffy, resembling whipped cream. Set aside to maintain its airy texture while you prepare the rest of Glinda's Pink Potion.

In a cocktail shaker, combine ½ cup of the prepared refresher base, ½ cup of sweetened coconut milk, and a handful (about ¼ cup) of freeze-dried dragonfruit pieces. Fill the shaker with ice and shake vigorously for about 30 seconds until well combined and chilled, creating a beautifully vibrant pink drink.

Strain the shaken refresher into a tall glass filled with ice, ensuring a refreshing chill. If desired, add more freeze-dried dragonfruit pieces on top for an extra burst of flavor and texture. Then, gently spoon the strawberry cold foam over the refresher, allowing it to float atop the vibrant drink.

For a whimsical touch to your Glinda's Pink Potion, sprinkle pink and green sprinkles atop the cold foam. This adds a delightful visual appeal, making your drink look just as enchanting as it tastes. Serve immediately with a straw, and enjoy your refreshing escape.