The least subtle sentry around, this card does nothing when first rezzed. Much like a real lumberjack clearing trees, this card is obvious and makes a lot of noise before it damages bystanders. Replacing "Timber!" with "endlessly advancing this ICE", both are clear signs of danger. With no free way to break sentries like Bird Lady does for barriers and Yog for code gates, each advancement will usually cause the runner to pay at least 1 extra per token. As such, it could eventually become a huge paywall in a glacier deck. It has synergy with Satellite Grid so it actually does something when rezzed, as well!

On the downside, so many cards are much, MUCH better than this. Net damage is a rarity in Weyland, but there is almost no way to force it on. This cannot be sneakily advanced while unrezzed like Ice Wall or Nebula, so the runner will know exactly the cost to get past this every time. It's 5 and an advance before this card does anything, as well. If you need to diversify damage in Weyland for some reason, this is not the answer you are looking for. Jinteki is the king of net damage for a reason, pick up a Komainu to (probably) deal more damage for the same starting cost. Or, if you like ICE that does nothing when rezzed, check out the slightly more useful Tyrant.

First time you rez this piece of ice, it'll do nothing unless combined with Satellite Grid or Amazon Industrial Zone. The first card will give it one advancement immediately so it'll gain deal 1 net damage, and the second will allow you to advance it right away after rezzing it.

Using Woodcutter with Amazon will cause it to cost 5 for the first rez and 1-2 more for the advancements. If used with Satellite Grid and Amazon you can give it 3 subroutines with the first rez, and in theory you could keep adding subroutines on it indefinitely. There are no sentry breakers that'll break all subroutines on a piece of ice, every one will cost 1 credit more. So, it could become something that no one will want to - or can - run through. This is it's advantage compared to Tyrant, which - if it was prominent in your meta - could be punched through by Morning Star for 1 credit.

The major problem with these two ice is: They are expensive for the fact that they do nothing at first and they have low enough strength that Parasite is a problem even without Datasuckers to kill them on the same turn as they are installed. You will spend your money and time and then they get trashed. Both pieces of ice are not bad if you're playing casual games where Parasite is not so prominent. But if it is around, they quickly become dead weight.