Clean them gently (never alter or press), use penny sleeves and card savers, and double-box for safe shipping
In a typical situation, if our Colossus did not have indestructible, the Recluse would kill it, sending them both to the graveyard
Like most of the Gods, Egons other side synergizes well with the front face
Take William Huey Jensens 244-card deck from the Top 8 of Grand Prix Milwaukee 2002, designed to exploit Battle of Wits, or Makihito Miharas 64-card Scapeshift deck from the Top 8 of Grand Prix Kobe 2011, where he needed a precise balanceenough Mountains for Scapeshift and enough blue sources for Cryptic Command
Even though he isnt a Vampire, Korvold fits surprisingly well into the same playstyle as many of the best Vampire commanders in MTG