Pay the eternalize cost, exile the card from your graveyard, and be richly rewarded with a 4/4 copy of that card, except it's a black Zombie in addition to its other types and it has no mana cost (and thus has mana value 0)
Sure, a few cards will always disappoint or surprise us after they are deployed in action, but thats pretty uncommon
Its strong, and like most expensive spells needs to be evaluated in the knowledge that ramping artifacts to get to higher mana quantities is easier than doing it playing any color, barring perhaps green
While Miracles can handle creatures with Swords to Plowshares and Terminus, it has historically struggled with non-creature permanents
There are three main types of card in Disney Lorcana: characters, items and actions
The depth of lore that the game is creating, as well as varying opportunities to create strategies in the game, can provide countless hours of enjoyment