As luck would have it
Definition 1 of 1
Pro Tip 1/3Unexpected Outcome
Use this phrase when something happens by chance and it's an unexpected, often positive, outcome. 
As luck would have it, the train was delayed and I caught it just in time!
Pro Tip 2/3Slightly Old-fashioned
The phrase has a quaint, slightly old-fashioned feel, making it charming in modern usage. 
As luck would have it, the antique shop had the perfect gift for my mother.
Pro Tip 3/3Narrative Twist
Ideal for storytelling, the phrase can introduce a twist of fate or a surprising turn of events. 
As luck would have it, the mysterious stranger she helped was a famous author.