Dragons have found easy prey by stealing some of the unsuspecting, untrained wizards who venture through The Rift or enter/exit Training.
Dragons have a 15% higher chance to steal from the location they are perched in.
Protection
Genesis wizards are immune to being stolen.
Treasure Chests can protect non-genesis wizards from being stolen. If you hold a Treasure Chest in your wallet, dragons have a 50% chance to steal the treasure chest instead of your wizard.