It doesn't have a ton of synergy, but I don't think they inherently designed the spider heroes to all have natural synergy, so this is just a way to brute force them into working together
Basically hitting at 13 on my list is this combination of Gravity Sphere and Levitation combo on a 3/2 body
Its even better than Magmatic Insight specifically because of its flashback ability
This is hardly a huge deal, given the massive pool of Standard and Commander cards, but it could mean less movement in blue meta decks for now
Of these three, the builder wants to find any given card as easily as possible, the Standard player will want a system that allows them to store cards in sets of 4 and a system that easily adapts for rotation, while the completionist might be better off sorting their cards per set and collector number
Prismari Charm's Swiss Army Knife-ness helps to not only accelerate a deck whose threats sometimes cost one-two mana but have retail costs in the seven-nine zone