Earlier in the format, things are a bit less defined and cards in the sideboard tend to fall into buckets. Thats to say this is a sideboard of packages with some cards to answer specific problems
Queen Brahne While a bit undersized, Queen Brahne will be great in limited, and might even see some spellslinger Commander play as her creation of black wizard tokens could greatly increase how well a deck can finish things
There's definitely merit in being worried about collaborations taking cards to extreme levels that overshadow regular sets or break pre-existing standards, but a singular flavored card like Jumbo Cacturr doesn't feel as significant as other changes being made to the franchise
Then the instant will draw you and a foe two, it's a common for Pauper, Peasant and Pauper Commander and then you can normally cast this for three and save your team by giving them indestructible for the turn to stop targeted or mass removal or to save blockers
Pollenbright Druid and Merfolk Skydiver can be played early, to get initial counters in play
Amazing art on returning cards