I could also see it as being an easy gateway into, or back into, the card game, since the way Arena can communicate information at a glance makes it easy to learn about all the new mechanics that have been introduced in the last few expansions
There were basically no relevant targets for any detain ability, and the best ones were often overcosted for their effects
There is a good chance this is actually an auto include just because it is a Raging Goblin that fulfils the no colour casting cost and artifact types criteria
You also get two foil Floodborn characters, The Queen, Commanding Presence and Gaston, Intellectual Powerhouse, as well as some shift targets and a couple of support cards in Grand Duke and Lefou respectively
Delney, Streetwise Lookout Small but mighty Delney, Streetwise Lookout is a three-mana white 2/2 that does a lot, but only if youre playing a lot of lower-power creatures
The reward isnt exactly game-breaking, but its certainly relevant, especially because its effectively stapled to a solid removal spell