Pretty straigthforward, scans the Marvel Hero subreddit for any posts tagged with the "Giveaway" flair and notifies you via the Android IFTTT app

This Trigger fires every time a new post submitted on reddit matches a search query you specify. NOTE: limited to 20 items per check.

This Action will send an SMS from your Android device to any phone number you specify.

Marvel Heroes subreddit giveaway scan