I'm sorry, I'm not meaning to make them OP :(...
With Diebefly, how about I just remove the effect negation part of its ability? That way it still keeps true to what a Robber Fly does, but let's the other guy keep his monster effect. That, or I can remove the attack lowering effect and keep the skill negation part. Does this sound good?
Abyss' second effect is limited to once per turn, one monster per turn. I still pay the cost, and the selected monster can't attack that turn. I don't hve a problem changing it back to what it was, if you or a lot of people here want me too.
Termite...well, it's a termite, and what those bugs do is what I'm trying to base its effect on. I can change it to just being there for one turn. Also, it will go to the graveyard after its time is up (I meant to put that there earlier, but forgot since I have to keep going back and forth on my phone).
Influence is one I can agree with you on. What I want to do with this card is make it resemble how the Iswarm Virus spreads after a Steelswarm monster dies. If you have an idea for this I'd like to hear it out.
Again, sorry if it seems I only make OP cards. I'm not meaning to, I'm just trying to give better support to an archetype that has been mostly outshined by its Evilswarm counterpart.