It costs the same as Cloister Gargoyle, has better base stats, can venture multiple times in a game, and has a good reward for completing a dungeon
Again a mixed bag here, but we've got some absolute banger reprints like Reanimate and Ruinous Ultimatum, plus for new cards the commanders are great (as always) and we've got some crazy good new cards like Kefka, Dancing Mad which is one of the best reanimate targets
In the end, the Metalfoes are specifically good at serving as a Pendulum Engine for archetypes with monsters between 2 and 7 that specifically activate when destroyed
Passimian ex is a great option, as it can transfer its Energy onto Tyrantrum after getting knocked out
Kiora, the Crashing Wave Kiora, the Crashing Wave has an Explore effect on the -1, and you can activate that ability twice and call it a day
I would hold onto a few copies of this card just in case