Of the three, Catacomb Sifter is easily the most powerful, so thats where I gravitated: Creatures (21) 4 Catacomb Sifter 4 Sylvan Advocate 3 Deathcap Cultivator 1 Tireless Tracker 1 Ishkanah, Grafwidow 4 Grim Flayer 3 Verdurous Gearhulk 1 Noxious Gearhulk Planeswalkers (6) Lands (24) Spells (9) This list is a bit slower than the G/W list, but in exchange it gets to take advantage of delirium
Printed in 1993, only about 1,100 of each rare card were ever made, and very few have survived over 30 years in pristine, graded condition
Cards that are too weak will generally be last picks, and any new cards that you add should never consistently be a last pick, or it shouldnt be included in the stack
While pruning one card at a time might feel a little slower than other one mana options, its the prize in the mid to late game thats the exciting part
There are two things to consider in answering that question