Chart shows the price of Exosister Pax MP23-EN260 at the end of each month going back as long as we have tracked the item.
However, most of that content, like the new selection packs and structure deck, isn't live until May 9, so you've got the weekend to stock up on gems for new purchases
Double strike lets a menace creature put out a ton of damage
The Historian is a valuable blue Critter that lets you draw a new card whenever you add a card to your city

Each Collector Booster will have the following contents: Collector Booster Info 4 Foil commons, common dual lands, or basic lands 2 Foil uncommons 1 Foil showcase basic land 1 Extended-art rare or mythic rare (45 rares, 8 mythic rares) 2 Foil rares or mythic rares, or foil extended-art rares or mythic rares 2 Showcase commons or uncommons, or a borderless card being previewed by Martin Juza on June 8 (5 commons, 6 uncommons) 1 Showcase or borderless rare or mythic rare (8 rares, 17 mythic rares including 5 versions of mythic rare Teferi) 1 Foil showcase common or uncommon, or a borderless card being previewed by Martin Juza on June 8 (5 commons, 6 uncommons) 1 Foil showcase or borderless card, any rarity (5 commons, 6 uncommons, 8 rares, 17 mythic rares including 5 versions of mythic rare Teferi) 1 Foil token In a pack of a Core Set 2021 Collector Booster, you are always getting a minimum of four rares or mythic rares, and about 45% of the time, you will get five

Not only does it allow you to play less lands in your deck while still hitting your land drops, but the two card combination of an end step March of the Multitudes, untap, and Flourish is going to be format defining