Wyrm has the following text:
1[Credit]: Ice has -1 strength.
Parasite has the following text:
Host ice has -1 strength for each virus counter on Parasite and is trashed if its strength is 0 or less.
If I understand this correctly, if I place a Parasite card on an ICe's, and use Wyrm's (somewhat expensive) ability to lower an ICe's strength, I can bring it down to 0 and then Parasite will kick in and kill it. Am I missing something?