my favorite two parts of the initial Magic saga are well-summarized in two of the Legendary Sorceries of Dominaria: ---Urza's Ruinous Blast, depicting the moment when the Archmage Urza, realizing that his brother had been corrupted beyond recovery, destroyed both of their armies in an instant

---Karn's Temporal Sundering, depicting the moment when Urza's robot pal effed up using a time machine so bad that he broke time itself