First of all, lets make one thing clear: If you need to ask what the difference between Bracket 1 (Exhibition) and Bracket 2 (Core) is, or the difference between Bracket 4 (Optimized) or Bracket 5 (CEDH) is, then your deck is Core (2) or Optimized (4) and not Exhibition (1) or CEDH (5)
The issue: Most cards have printing inconsistencies or uneven frame widths
The way its ability is worded also makes it so that you can choose not to do that, allowing you to use instants or key spells without worrying about sending them to the bottom of your library
Precons are ideal for newer players for a number of reasons: Theyre affordable and well-built
Equipment are cool, but if you dont have creatures to which you can attach them, theyre kind of useless
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