You do want access to a lot of mana and casting discounts
Artifact-aggro decks like The Blackstaff of Waterdeep and Tempered Steel have already been seeing tournament play, and Nettlecyst immediately becomes the most powerful card in those decks, offering an All That Glitters that costs one more mana but comes with a body that can be moved around for just two mana if it diesthe same cost as All That Glitters
The decks are available for preorder now from your local game store, Amazon, TCGplayer, and elsewhere Magic is sold.
It's generally worse than a double strike granter like Temur Battle Rage since those offer the creature "protection" from blockers by killing them before they can deal damage, but it does stack with double strike which is very juicy, plus post-combat you can Fling the creature as a finisher
WotC realized that they could more effectively use core sets to introduce players to the flavor of Magic just as much as its gameplay, and that this might solve some of the problems earlier core sets had