3 Time Vault (Retro Frame) - $400 There are plenty of ways to take extra turns in Magic, but no single card does it quite as well as Time Vault
Opponents with decks whose curves extend to seven and play cards at random don't fear the Keg, they just respect it
This is just an incredible black enchantment, allowing you to pay up to 6 life a turn for some combination of mana generation, card draw, and board presence
I'm not great at keeping track of triggers, but it's not unheard of for Faerie Mastermind to draw as many cards in a casual game's turn cycle as Mystic Remora or Rhystic Study
Thieves' Guild Enforcer While it was in Standard, Thieves' Guild Enforcer was a solid inclusion in rogue typal decks that aimed to kill your opponents in multiple ways
Some commanders might be great if you can generate infinite mana or combo it with a very expensive card, but Yuriko just wants cheap creatures and high-mana-value spells