Suddenly Evolving Wilds is a better Prismatic Vista, and Path of Ancestry is a better Command Tower
Thats not quite the case with Karns first appearance as a creature, however, as its Urzas Saga debut wasnt exactly heralded an the over-powered entity the character is historically considered
Memory Jar will then deal 14 damage to your opponents, and 28 if you find a second copy of it
A lot of the focus in both those sets was drafting archetypes, and it looks like Eternal Masters is no different
Of course, you dont want a massive swing to be in vain because of a few weeny blockers
It may not be the most reliable of the two for ones, not even always the best value of two for ones, but it is often enough and when it is it does tend to end the game