This prevented people from using it to completely clear someones board of lands, since theyd presumably have a few basics laying around
Some examples of strengh and "too" dangerous spells are Megrim and Lightning Bolt , but also Bonfire of the Damned
Instead, it's primarily considered a Limited format intended for MTG drafts - but both the One Ring and the innocuous Orcish Bowmasters made waves in eternal formats, becoming staples
This artifact has a fun story attached to it, too: Originally, Skullclamp was designed to give a +1/+1 buff, but before seeing print the Magic designers thought that such a buff would make Skullclamp too powerful and they changed it to +1/-1
The Deck of Many Things Your one-shot is just a d20 die-roll away with The Deck of Many Things
Or reduces your power by a measly one