Its so common that it becomes a must-know mechanic if you want to extract value from cards in Draft, Sealed, and some Constructed MTG formats
A well-crafted deck, even with common cards, can be just as effective when it has the right strategy and synergy
Sisay has all of the tutoring power
It establishes Nami as a versatile leader, combining defensive prowess with unconventional tactics
It has seen multiple reprints and remains one of the most accessible high-powered graveyard cards in the format
I didn't reflect that much on the name change, but it was recently pointed out to me on this blog that sphere of annihilation was an artifact in D&D made famous by the 1978 module Tomb of Horrors, and it is possible that they changed the name before print to avoid any conflicts regarding intellectual property