The least Common rarity is depicted by a circle - with one side - while the very rarest Legendary and Enchanted Lorcana cards have five-sided pentagons and six-sided hexagons respectively
Even with the downside, the benefit you get from information and making them discard a key spell is worth the life loss, and control/combo decks hate to see a turn-1 Thoughtseize
It gains "If this land would leave the battlefield, exile it instead of putting it anywhere else." , , Sacrifice Realmbreaker: Search your library for any number of Praetor cards, put them onto the battlefield, then shuffle
Marisi, Breaker of the Coil Any card that shuts down your opponents ability to cast spells, even temporarily, is really powerful
However, if youre really trying to pull some money in your RVR packs, the Collectors Boosters are the way to go