They can be played alongside high-cost cards in order to spend your extra ink and develop your board, they can get buffed by a Support character like Rolly and become a cheap way to trade up into bigger threats, and Lucky can discover them when you use his ability Good as New, making them more valuable in your deck than in your hand
Dropping a Dinglehopper in a deck full of heavy-hitters you want to smash with can keep them in play for longer, Poisoned Apple can control the board and even take out Princesses complete
The more Jafar and Genie options there are, the better it gets
Into the Inklands casually upended the established Lorcana format by introducing a whole new card type: Locations
For the first time, the heroes of Big Hero 6 and the tiny but mighty Rescue Rangers join the ranks of the games glimmers
Gaston not only can shift onto a low cost Gaston, it also has a valuable draw ability that is especially handy given Sapphires ramp ability