The answer is a combination of product strategy and what could be called the lottery ticket effect
The seaborne set introduces new characters from the cast of Big Hero Six and Chip & Dales Rescue Rangers but also brings new versions of existing cards, like personal favorite, Jim Hawkins
[31] The second installment in the series , Illumineer's Quest: Palace Heist , was released alongside the "Reign of Jafar" expansion
Yeah, this card doesn't belong in red but here it is, so live with it
Gadget Hackwrench will let you play Inventor Characters for one less Ink if you have three or more Items in play
You potentially can also use the front side of Invasion of Shandalar to return massive finishers like Portal to Phyrexia or Atraxa to your hand, flip Invasion of Shandalar, and drop them into play on future turns, which sounds powerful if you can find the time to get it set up