The Lost Caverns of Ixalan introduced Map tokens, and a new keyword action, very reminiscent of cascade, thats a favorite among many casual and competitive players
Since it was so iconic during MTG's early days, it's easy to see why it's been able to maintain a lot of its value
Often, the most playable answer to a strong Planeswalker is the downtick of another Planeswalker since they tend to target any permanent type
Essential for Limited formats like Booster Draft and Sealed Deck
Officially introduced to Magic: The Gathering in 2015 with Magic Origins, menace was brought in as a replacement for the intimidate mechanic, which in turn, was brought in to replace fear
If I'm in the market for blowing up Aether Vial at all, this is where I respond by cracking Bomb, regardless of whether opponents intended to actually add a counter (that decision is made upon the trigger's resolution)