Most decks dont need more than five or six lands, so holding the extras ensures you always have some discard fodder for your looters
How complex you want to make your deck is up to you
When you say, "If two or more creatures are tied, they all have first strike," does "all" mean all the creatures or just the ones that are tied
That said, because of its cool design and how beloved this character is, fans are willing to pay a hefty sum just to own a copy of this card
The best Murders at Karlov Manor cards will let you indulge in secrecy, subterfuge, investigation and the joys of undeath
#5 Conservation of Design Space This final category is the most complex but for the long-term health of the game, probably the most important