To put it simply... this card is garbage is essentially every way. But I'll elaborate.

First off, it's broken for 0 by Yog.0. Every time. This was considered a crippling weakness back when it was released, but now Yog.0 isn't nearly as popular. Still it's worth noting that it'll be worthless against certain Anarch matchups.

Secondly, it can't be advanced while unrezzed. That means that it can't take the runner by surprise, which is the only real value in tracing tag subroutines. Futhermore, it won't do a single thing the first time it's run against. You'll just rez it and the runner will go past it, since it has no subroutines.

Thirdly, it has ZERO strength. That's complete crap. It will always be broken for one per subroutine. (discounting breakers like Knight)

I guess you could see a little bit of play in weird Weyland Midway Station Grid decks, but honestly it's likely still bad there. This ice is the true representation of the fact that Weyland has almost no good code gates.