Bloodletter of Aclazotz Speaking of Sheoldred
If sweepers were cast, it could rebuild by putting Hogaak, Arisen Necropolis into play after a fetch land returned Bloodghasts to the battlefield, and if the opponent tried to respond from all angles, they wouldn't advance their own game plan and would end up losing to the small damage that any creature left in play could cause
If Zalto is dealt damage by multiple sources at the same time (usually creatures blocking it), you will only venture into the dungeon once
If a resolving spell or ability instructs a specific creature to connive but that creature has left the battlefield, the creature still connives, although you can't put any +1/+1 counters on it
Even the deck's reprints are a bit lackluster, with Mother of Runes as the only stand-out candidate
There are also learn to play demos