Ten years ago, I created a Commander deck centered entirely on Ball Lightning
When it comes to size, Wizards compared the release to MTG Lord of the Rings, which had 281 new cards
(2) Once per turn, if an opponent's monster declares an attack: You can send the attacking monster to the GY, and if you do, inflict damage to your opponent equal to its ATK
SAW IT COMING Speaking of mana efficiency, 2021 and Kaldheim may have given us the best answer yet to What would make a 1UU counterspell feel exciting? After 15 years of Cancel, few would have expected it sometimes costs 3U instead to be the ideal solution
X #109 Luxray GL Lv
This essentially adds extra copies of those cards into your deck, and its the reason that Snapcaster Mage is in nearly every Blue deck that matters