The recent Brawl decks are a great example of this
Despite not lasting for very long (with just three sets released overall), the Tomb Raider Collectable Card Game was a decent experience that deserved to find a bigger audience especially as it felt unique in comparison to other CCGs at the time
Wrath of God, Damnation, and Farewell are all examples of hard board wipes
This is a versatile card, has both casual and competitive appeal, is an advantage engine that lets you choose between mana and damage and is in great colors for comboing off
While Un-sets (like Unglued, Unhinged, Unstable, Unsanctioned, and Unfinity) are playable Magic cards, they exist outside the typical tournament legality and feature whimsical, often rule-bending mechanics
No matter how much we want Inspiring Commander for, well, Commander