By using her Key to the Puzzle ability, you're able to both ramp up your ink to get Belle into play as quickly as possible, and also work through your deck to find the items before another card puts them in your inkwell, where you can't reach them
Im more excited to see how it performs to help give these Amethyst decks more reach alongside Merlin Goat and The White Rose Jewel of the Garden
With Rise of the Floodborn, well hopefully find out where this is all going
The Floodborn, for example, have more powerful versions that can shift onto a pre-existing card for a discount
Summon: Choco/Mog Three-mana 3/3s arent quite good enough anymore, but giving your whole team +1/+0 is enough of a bonus that I think this is really good
It cannot be countered, bounces any nonland and then draws a card too