yugioh umbral horror deck Unform - Dark Monster Thousand Umbral Horror - Yugipedia

The only cards that might be worth anything in this set are the six Anniversary-stamped cards, and even then I wouldn't expect them to be big money cards

All that being said, Buzzwole lacks standout strength when evaluated on its own merits

Another legendary from the same expansion, Zeraora, can do a similar feat, though with less damage and without discarding all of their energy cards

According to ruling on the OP forum, the proper operation for attacking would be: Make choices that are required for an attack

Normally I would say something like when you want to steel a guy you should go for the cheapest and most reliable option in Control Magic and not risk having it undone with something as simple as a Firebolt just for the sake of a 2/2 flier