Cards are a resource, so you should naturally want more of them to impact the game
With Toski in play, you can easily refill your hand every turn since your creatures now draw cards when they deal combat damage to your opponents
Yes, you can block a creature with reach without a problem
This time around its the Allied fetches, and they have some nice options for the old border if thats what you enjoy
The Lorwyn Five are the only planeswalkers to appear at rare, but that's only because mythic rare didn't exist yet as a rarity
Such cards included Clone, Vesuvan Doppelganger, and Fork, cards which were either overpowered or offered strange rules interactions not suited for a base set