Within Temporal Forces, this is one of the SIRs people actually open packs hoping to hit, which is why most builders just buy the single rather than chase it
As far as R&D is concerned, it is the theme discard cards that cause the most unhappiness as discard decks are one of the scary three (land destruction, permission and discard) that tend to keep people from playing the game and thus tend to annoy players at a much higher level than other decks
Prohibitive pricing aside, the first Standard-legal Universes Beyond product has the potential to really get the initiative off on the right foot
"Gear Gigant X" is a solid choice for an Xyz Monster and acts as a searcher, while "Heavy Armored Train Ironwolf" can turn "Armoroid" or a stat-flipped "Mobile Base" into a massive direct attacker
Its an instant, exiles instead of destroys, and costs only one mana