Duskmantle Seer is my favorite card from Gatecrash, so I thought I'd build a deck around him.
Then, I crammed Boros Reckoner in there, just because he's a wizard and it doesn't hurt to run Boros Charm or Dreadbore.
I recently built a deck similar to this due to my affinity for the seer as well. However, I went Grixis and mainly death spells like Ultimate Price and Victim of Night with Bonfire of the Damned . I am just running 4 Duskmantle Seer s and 4 Delver of Secrets Flip as my creature base, but I chose to go the card:Runechanter's Pike route. Although dropping the white does lose all the life gain associated with the deck. I feel the kill and burn cards are just more effective.
I hear ya. This four color thing turned out to be too janky, esp with the mana base. I'm building an esper deck around seer as we speak.