Each Deck holds some of the most popular cards in modern Yu-Gi-Oh
When you cast Bloodline Culling you can have a creature get -5/-5 until end of turn, which can be useful for killing off any specific threat, but especially those that are indestructible, as they dont die through normal means
Gilgamesh, Master-At-Arms Gilgamesh, Master-at-Arms is one of the best ways to get a ton of Equipment onto the battlefield at once
Every time you pay 4 life the next time Library activates it will be giving you more information and better card quality than it otherwise would much like having a shuffle effect
Since they won't see the rules text, as it will be left off, how will they know how awesome the card is
In fact, youll nearly always be paying five mana for it, but it turns out that its got a really good credit rating or something, because you dont have to pay it all at once