If the first target of Burn Together is an illegal target as the spell resolves but the last target is still legal, Burn Together will resolve, but no damage will be dealt and nothing will be sacrificed
However, a few things have changed over the last several years that have led to Paradigm Shift actually seeing play in every format its legal in the printing of two very good cards that have alternate win conditions tied to you shrinking your library or erasing it entirely
Puresteel Paladin does almost the same thing as Sram, Senior Edificer in terms of drawing cards, but it looks for Equipment coming into play, not being cast
Buying locally means you have a store and a business that relies on the goodwill of customers, so they will take care of their products
Troemll, Seymours Butler gives you counters on your team, but where were all pumped is in the tap ability to Proliferate X times, which is kinda insane
This goes double if their abilities synergize with other cards those decks are playing
