About the deck: in my personal experience against this MF deck i can say that if no one in the table shows a deep interest on what the slivers are doing we are all going to lose on turn 6/7. Every match needs for a group effort to slow down the slivers so the table can play on. The real catch isn't the Crystalline Sliver or the combo cards, the problem are the Mana-boost cards such as Mana Reflection or Gemhide Sliver, those are the targets for removal o global cleanse if that's the case.
The swords will be an improvement, specially Sword of Feast and Famine. I think i don't have to explain why.
The way i would play it: i think these tipe of decks can't be played combo if you want to win the game often, sure you'll win the first ones but as soon as your opponents realizes that you are THE threat it would be rare to reach turn 15 or even 10. I guess the aggro deck is the one. Hitting with a few slivers an then bombing a legion with flash/haste its orgasmic.
The swords will be an improvement, specially Sword of Feast and Famine. I think i don't have to explain why.
The way i would play it: i think these tipe of decks can't be played combo if you want to win the game often, sure you'll win the first ones but as soon as your opponents realizes that you are THE threat it would be rare to reach turn 15 or even 10. I guess the aggro deck is the one. Hitting with a few slivers an then bombing a legion with flash/haste its orgasmic.