Any two Creatures with Undying will go infinite, like Butcher Ghoul and Hancock, Ghoulish Mayor, as the +1/+1 and -1/-1 counters cancel each other out each time and you sacrifice those two Creatures infinitely as long as you have a way to gain life
Each Background synergises better with a specific legendary creature than others, such as Scion of Halasters ability to put cards into your graveyard working perfectly with Viconia, Drow Apostate and her requirement of having four or more creatures in your graveyard
The term comes from the card Millstone, first printed in the 1994 expansion Antiquities, Magic's first ever expansion
#9 Also accordion blocks still doesn't make sense to me on how to use them do you have link to a video that shows how to do it im more of a visual learner not a "read this and do it" person as stated before the accordion set up is just a bunch of words and First I'm far from a genius or expert in make cards or sets and this is my first time doing so particularly on this site, so other complaining about my first time attempting something like this, do have anything else to say about the cards themselves