InkieVerse  
Changeling Invasion
 
Changelings have invaded Equestria, everyone is on alert. Changelings are known to take the form of a loved one and collect ‘love magic’. When they’ve drained all the love they can from a victim, they abandon the weak pony and head back to the hive to feed their brethren. There is a spell to reveal a changeling, but who to test? There is only one known way to spot a changeling. In the sunlight, a changeling imposter’s eyes shimmer green. Sadly, Ditzy Doo hasn’t noticed anything odd.
 
Ponies drained of love magic become physically weak and suffer from Broken Heart Syndrome. This affliction leaves a pony feeling incredibly stressed, and in pain from what feels like a heart attack. There is only one cure, another pony or creature must share their love with the drained pony. This will slowly replenish their love magic levels. Sharing love does not drain love magic.