As Eidolons are directly linked to their Summoner, Cecil and Kain inadvertently kill Rydia's mother in the process
It made use of what we called the Nightmare mechanic
Encroaching Mycosynth is just an updated Mycosynth Lattice, after all
Ezuri, Claw of Progress Just like Deathtouch creatures, a lot of Infect creatures in MTG are rather small
Other Odd Misprints Many strange things have happened inside Magics printing factoriessquare-corner cards where the cutter never rounded the edges, diagonal cuts that leave the card shaped like a diamond, and even cards printed with debris stuck to them (including the famous fly on the card misprint)
Naturally, some of these references are about key major story points in their respective Final Fantasy titles