With the release of The Brothers War, the Soldier creature type got a huge boost in support with cards like Harbin, Vanguard Aviator and Siege Veteran
Some versions rely on Threaten effects which steal creatures temporarily, while others use abilities like the one on theft commander Gonti, Lord of Luxury to draw cards from opposing decks
Well of Lost Dreams can turn the lifegain into additional card draw to go with all the mana youll ramp out
A 1v1 digital game has no use for an ability that requires multiple opponents
That left most of us trading in our Sliver Queens to the kids who would better appreciate them, of which there was a more or less endless supply
Against G/B or Jund, you want none of the enchantments, all the three-drops, and they definitely have Dark Confidant