The goal here is to use LD cards to keeps the oppents mana pool empty
When you have tutors and are able to fairly reliably select which of your fatties you are going to flop out having these kinds of silver bullet game enders can be pretty nice
The act of committing crime is the easy part though, it's the payoffs that make things complicated
The best part of this Bloomburrow card is when you can put it straight onto the battlefield attacking, and in an aggressive deck, this represents 4 or 5 damage coming out of nowhere
For 1 extra white mana, whatever wacky combo you set up is totally protected from instant-speed interaction just make sure you havent left any valuable pieces on the board to be Murdered before your Silence resolves
However, they are widely accepted for "kitchen table" casual play, playtesting decks, and Cube drafts, provided they are clearly marked as proxies and not sold as authentic cards