The flesh spider and flesh recluse are pretty lackluster at the moment. Usable, yes, but not particularly competitive. They're completely inferior to the horned/giant frog, for instance.
Immortal otyughs can be countered by four cards, the fire shield, the fire buckler, the ice shield and the permafrost shield. Momentum-ed immortal otyghus are completely untouchable. The only disadvantage of that combo at the moment is the time it takes to get in play.
I propose that the flesh spider and flesh recluse be given a new special ability; "ensnare". For two death quanta the flesh spider/recluse targets a friendly creature and surrounds it with traps of poisonous silk (visible counter). Any creature that attacks that creature (scarabs, owls eyes, otyughs ect) receives one poison counter. Since this is a passive defense that's not explicitly targeting anything, it ought to work on immortal otyughs as well.