Field a collection of zombies, automatically create a bunch of decayed ghouls when they die, and wait for the end of combat to pick up a bunch of cards from their ashes
Although it probably isnt good enough, I do want to try using Collected Company to put one or two of these into play in my opponents draw step in Historic, but I expect it to mostly stay in Standard if it sees much play at all
Planeswalkers matter is a real enough thing, and I can imagine that some players will design Cubes with heavy die-rolling themes
The sacrifice is a choice you make during resolution
Minimum Spell Count This might seem like an obvious one, but in order for Spellslinger decks to operate effectively, they need to have a critical mass of instants and sorceries
in high school, and ultimately landing on Magic: the Gathering (MTG) in college