Because death effects, hard CC is not ideal in Death. Otherwise, death monos become too OP. Imagine if Owl's Eye and Bonewall were in the same element. Yeah.
Oh yeah, that's probably why.. makes sense. Should I also have the infection not trigger death effects, since if it did, then that would be four deaths in three turns (Zombie's Bite, infect two creatures, and Zombie dies), and then there are the two other Zombies that can also infect things.. it might get out of hand, especially with Bonewall and Boneyard.
Skellies are undead and they trigger death effects. Given their low health, I think it makes more sense to remove the autodeath and slow the effect. Grey Nymph, for example, is repeatable CC for Death, and it is very powerful, but its CC is very slow, and comes with a drawback. This too comes with a drawback. Each enemy that you kill turns into a 3|1 creature, which can be useful for the opponent if they have
. About the actual ability, you could just make the ability Zombie's Bite. Simple, not too effective, but interesting thematically and mechanically. Using the ability inflicts 2 damage and the status Infected, where dying turns the creature into a Zombie, just like the status for Aflatoxin. Or, you could go even more like Aflatoxin and do the 2 poison per turn. Personally, I think we don't really need another Aflatoxin with a twist, and would prefer Zombie Bite generating Zombie which uses Zombie Bite to generate more Zombies.