While Flesh Duplicate doesnt share that cards flexible Phyrexian mana, it is ultimately cheaper overall
While it may seem more enticing to get rid of multiple characters with a single play, Maleficent trumps that by allowing you to choose and not having any other restrictions for doing so other than paying the cards ink cost
This tells us that product IDs 1,012 to 1,129 all fall between roughly March and November 2001, which is fantastic here because those other three sticker packs have product IDs of 1,036, 1,037 and 1,038 and despite not having any obvious tell-tale signs of when they were released means I can assume they were likely from some time in May/June 2001 and almost definitely between March and November 2001
In practical operations, Ive seen three common refill windows: Morning refills are still the most common from what Ive experienced
Each player may exile their hand and draw X cards