I see Blacksmiths Skill as similar to spells like Rebuff the Wicked , but with the added utility of getting around spells that cant be countered or protecting you from things like Boseiju, Who Endures
Also how did nobody vote for Team Rocket Returns Dark Steelix / where is Kingdra
However, since the advent of different formatting, Magic: The Gathering cards can also be banned due to how unfairly they can interact with older cards from previous formats, such as Vintage and Standard, which were introduced in 1995
Don't let the glitz fool you, though
Alternatively, other builds uses various "Horus" monsters, which can easily swarm the field by filling the Graveyard and bring themselves out by their own effects when any monsters (including "Danger!" monsters through their own discard effect) were sent to the GY