Mana Confluence and Underworld Connections more aggressively, and play Thoughtseize later in the game with less pressure
If you want to buff this Commander Deck, other cards that make artifacts hexproof and/or indestructible could certainly be very fun, as barring a board wipe, this would prevent most damage, and help to keep your Commander alive, and annoying
It wasn't quite that easy, but the teams went above and beyond to figure out how to make it happen
If you choose to play it as a land, it enters the battlefield tapped and you can tap it for U mana, just like an Island
Enchantment tokens (such as Roles) that are sacrificed, destroyed, or would otherwise go to the graveyard are put into their owner's graveyard before ceasing to exist