Reds commons are fine, but if you dont already own copies of Empty the Warrens, then now is the time to get them
Given that Wort is all about copying spells, I also love additional cost inclusions like Unexpected Windfall
These boosters are more expensive and aimed at players who tap into the nostalgia like Innistrad Remastered collector boosters or want high-end Modern Horizons 2 collector boosters stuff
Getting to drain them every time your creature dies is a staple in black sacrifice/aristocrats decks in many MTG formats, and if you want more of this in your EDH decks, go for it
Every spell you cast stacks lifegain until you pass 50, then you can fire a laser straight at an opponent
Thats where real collaboration can shine, because you can gather input on how balanced your cards power level is or how well your flavor text resonates with your chosen theme