Spike would make a good target. There seem to be some things the other mother could use to tempt him, such as an other-rarity who actually returns his affections, garble and his gang being his servants, all the gems he could eat, and of course the Beldam herself as other-twilight who is much more motherly and attentive to his needs.  
other-rarity would end up taking a similar route to other Wybie. not serving the Beldam by choice but rather being reluctantly forced to play her part in her games, until eventually she helps him, only to be punished, most likely by having her empty sack made into a dress. Other-fluttershy could be similar to the other-mr. bobinsky, a sack being animated by a bunch of “animals” moving it around.

@vinylloverfrom4311  
I was thinking of that but the other mother Usually Make doll to look like the one to she like to spy on

That bitch still creeps me out…

this might work better with smartypants.