Every collector booster has a dedicated slot for bonus sheet cards, though, so if youre interested in trying to assemble as many as possible, those packs are probably your best bet
When opening a play booster, youre guaranteed to get at least one normal rare, with a 1-in-7 chance of pulling a mythic
Association with Rarity Here are effects that don't tend to start until rare: Alternative win conditions Copying permanents Counter doubling Damage doubling Extra combat steps "Lobotomy" (removing all of one card from the game) "Maro" ability (power/toughness equal to hand size) Mass creature destruction "Meddling" (name a spell that then can't be played) Massive token creation Permanent control change Playing cards off top of library Spell copying Spell redirection Tutoring creature from library onto the battlefield Mythic Rare Complexity We allow advanced board complexity at mythic rare, but actually require lower comprehension complexity at mythic rare than we do at rare because we want players to understand what the mythic rares do
1 Carrion Rats
This is essentially a free Thoughtseize, and if you combine it with cards like Ephemerate, you get to Thoughtseize your opponent twice and play a 3/2 with menace
These are widely considered the most powerful cards in Limited Edition , and are among the most powerful in all of Magic: The Gathering