She has card drawing fun times any time you lose a dork, even a token dork
Your primary commander, Kaalia of the Vast, is also worth over $20 on secondary markets and is a very popular commander in its own right
It comes in at only two mana but can become a copy of any creature you own, assuming you exile it, so while they are only two mana, you generally want to wait to cast them until you have something big in play, like Massacre Wurm or Crabomination
That is very strong and you can -2 her first on a naked board, block an attack from a flyer, and then +1 and tap the Thopter that is left for a card after scrying, like a repeatable Opt
On top of this the creature only sorcery speed bounce has far far more limited use than most of the rest of the bounce on this list and as such these cards rarely see play these days