If an ability triggers whenever a creature is blocked by a creature with certain characteristic, it will be triggered if a blocking creature had that characteristic when it became blocking
Its usually best to have your opponents fight amongst themselves, and consistently goading their creatures can quickly snowball in your favor
Collectors will also want to grab these decks, if not just to add new cards to their collection, especially the included foil cards, since Shimmering Skies introduces a handful of new properties, including Wreck-It Ralph
This deck has a ton of great auras and Preston will help you cast them all by untapping a bunch of lands during your turn
Its worth noting that this mechanic is restricted to once per opponents turn, meaning it gets better in multiplayer Magic and your opponents know the maximum amount of value you can accrue
The first is permanent - your opposing goaded stuff can never block as long as you control the Demon
