A foil Sliver Overlord is significantly more expensive than a non-foil Sliver Overlord
The first time I properly met Simon was at Pro Tour Oath of the Gatewatch, where his team, Team Eureka, broke this deck out into the world after previously only being seen as a fringe deck on Magic Online (funnily enough, the CEO of ThreeForOne, Oliver Polak-Rottman, was also part of Team Eureka!)
Don't think it isn't a good fit for more experienced players too, though
These full art lands are simply gorgeous
Im including some ways to convert creatures dying to extra damage: Syr Konrad is a very interesting card for Commander because it deals a point of damage for a wide variety of reasons: when another creature dies (which happens a lot, especially with Korvold around), or whenever a creature is put into a graveyard from anywhere other than the battlefield (such as discarding or milling), or whenever a creature card leaves my graveyard (such as some form of recursion)