2021-09-24 : As Poppet Factory transforms back into Poppet Stitcher, the effect making your creature tokens 3/3 and making them lose their abilities ends. Their base powers and toughnesses will revert to whatever they were before that effect started applying, although other effects that modify power and/or toughness, such as ones created by Auras, counters, and the like may still apply. They'll also have whatever abilities they had before they lost them.

2021-09-24 : Decayed does not create any attacking requirements. You may choose not to attack with a creature that has decayed.

2021-09-24 : Decayed does not grant haste. Creatures with decayed that enter the battlefield during your turn may not attack until your next turn.

2021-09-24 : Decayed represents a static ability and a triggered ability. "Decayed" means "This creature can't block" and "When this creature attacks, sacrifice it at end of combat."

2021-09-24 : Once a creature with decayed attacks, it will be sacrificed at end of combat, even if it no longer has decayed at that time.

2021-09-24 : Poppet Factory's first ability removes all abilities from creature tokens you control, including ones they were created with and ones they gained since the last time Poppet Factory transformed.