Pretty straigthforward, scans the Marvel Hero subreddit for any posts tagged with the "Giveaway" flair and notifies you via the Android IFTTT app
If
New post from search
This Trigger fires every time a new post submitted on reddit matches a search query you specify. NOTE: limited to 20 items per check.
Then
Send an SMS
This Action will send an SMS from your Android device to any phone number you specify.
ID vRwUSW6J
Discover more time saving integrations for Android SMS and reddit