Will they stay stuck
At halfway to $1000, this card is more valuable than many ivory products, which is good because why would you want to buy stuff like that, anyway
Swampcycling lets you put it into your graveyard to fetch a land, then you can use a cheap effect like Persist to bring it to the battlefield ahead of schedule
It gives you draw power while also boosting up the stats of another Faerie with +1/+1 counters
Fact or Fiction, Repulse, Repeal, Cyclonic Rift, Crush of Tentacles, Exclude, Arcane Denial and of course Cryptic Command are all strong cards that have significant overlap with the Confluence
The ability to also search any snow permanent makes it great for snow decks because it can go from being a ramp card to a tutor that finds something like Icebreaker Kraken