Descent (🌀) can protect agendas both:

• with its ↳ End the run. subroutine, and
• with its Shuffle up to 2 agendas in HQ and/or Archives … expendability.

And (because it draws 1 but shuffles 2), you can still tuck away an agenda already in HQ even if you also draw another one. For example, tucking two The Basalt Spire’s or SDS Drone Deployment’s can be brutal; unlike the in-faction Drudge Work, it won't earn you six credits, but also won't take up a deck slot, and isn't rotating.

Like Tatu-Bola, it's a $2/1s/1↳ EtR (at 2/5-inf) that can reposition itself (& shrug off trojans) and/or gain “unbreakable” (non-subroutine) value. AFAICT, it's the last in NSG's cycle of “gearchecks with late-game” (tho the only Code Gate):

• Ping (sg): has an On-Rez.
• Ablative Barrier (tai): has a (Threat’d) On-Rez.
• Tatu-Bola (tai): bounces to swap, for econ, and repositioning.
• Descent (rwr): bounces to expend or reposition.

PS. @Sokka’s spoiled champ card Key Performance Indicators seems to be a “Weyland Level Clearance” that can tuck an HQ-agenda (while advancing / installing ice / earning credits), which could cannibalize Descent by also being a (more powerful) anti-flooding effect that's “multiple cards in a single slot”. Or maybe together, they'll provide enough in-faction (& incidental) flood-protection to save influence (& slots) on some Spin Doctor copies (as some 44-card decks, like BTL & PD, have done). Or maybe not, since—while Descent can tuck Archives-agendas too—they're both “action-speed”, not “window-speed” (lol) like Spin Doctor. IDK.

Environmental Testing’s “install four programs/hardware” mini-game is kinda/sorta halfway between time-based econ (like Daily Casts) and clicked-based econ (like Telework Contract):

• While you need clicks to install programs, you don't need to waste a click on just taking credits (same as good run-based econ).

• While you only have about four clicks per turn, you can easily "cash out" quickly (like triple-clicking a Liberated Account).

Design:

• It's econ that's non-generic (& non-neutral): You don't just “wait for credits” or “click for credits”, you build your deck around the two card-types it cares about, and you play your games to speedrun it or not. (Even if it were neutral/0inf, IDs can't just drag-n-drop it in for some extra econ.)

• It counts up (not down) to be charge-able.

Synergies:

• Program-“Fetching” Programs/Hardware (since they double-trigger ET): Self-modifying Code, Muse (e.g. Muse–Coalescence gets you two triggers for zero credits off one card in grip), Simulchip, Gachapon, etc.

• Clickless Program-Installs: esp. in Arissana Rocha Nahu.

• Self-“Bouncing” Programs & Program-Bouncers (once you re-install): Pichação, Urban Art Vernissage, etc.

• Other “Program-/Hardware-fall” triggers, Program-Cheapeners, Program-only Hosted-Credits, or so on (every program becomes cheaper to install and/or better upon being installed): LilyPAD, DZMZ Optimizer, etc; even Az McCaffrey and Prognostic Q-Loop in Crim.

• Cheap Programs/Hardware (just sleeving up a lot in your deck, duh).

For example, with DZMZ+ET+Lily, installing a program a turn will save you $1, get you “$1.5” closer, and draw you 1 card (see “The Metric Octopus - 11th at Worlds 2023” ).

You can accelerate it easily, ET–I–I’ing one turn then I–I’ing the very next turn (as long as you already had them in grip, or could draw into them, or have been re-installing cards, or so on); though you will be spending credits (on installations) after having sunk three (into installing it itself). You can “compress” it too: install a SMC or Simulchip the same turn (as ET), but crack it on the Corp's turn (double-triggering a LilyPAD; then, on your next turn, install Muse–for–Coalescence*, popping ET (while setting up your rig at the same time).

PS. An ID like Hayley Kaplan, which triggers on either turns (Runner and Corp alike), could have popped ET by manually installing only a single program (on R-turn) and then cracking SMC (on C-turn).

As @dnddmdb says in their review, "one click for six credits is simply very strong".

This gives tempo to the corp. While it is not a "trash on sight" card, it has an ability that can really change the course of the game : install something from archive directly, anywhere, at no cost (but no rez).

This is not to be underestimated, as that can give the corp powerful asset/upgrade (like Rashida Jaheem, Wage Workers and The Holo Man), trashed ices (like Border Control) or even an agenda (that can be put inside the protected server, waiting to be scored next turn).

What might have been an exchange of installing The Powers That Be in an earlier turn, to install a card later (a click spent now to save a click later), can become a powerful tempo boost. And this synergize even more with Asa Group: Security Through Vigilance and A Teia: IP Recovery, since those corp gain additional benefit from a free install. Possibly, Near-Earth Hub: Broadcast Center could get a boost also.

The 1 influence for EVERY corp is a fair price for this asset. Much cheaper than using Restore in influences. At a trash cost of 3, it is costly enough to give pause to the runner.

Here is a fun shenanigans that can be done in the Jinteki faction. If you score Hybrid Release using Kakurenbo, you get to put any installable card from archive AND install something from archive or HQ, thus getting 2 installed cards for an agenda point and 2.

The art is amazing and could easily be on a playmat. The quote goes with the art to indirectly refers to Jeitinho, where the runner wins the game by "knifing" 3 times. So much dimensions to this. Amazing!

Part of the wandering sysop quatuor, with Vovô Ozetti, Adrian Seis and The Holo Man. Of the four, Isaac Liberdade is the least used, mainly because The Holo Man is so powerful.

There are precious few cards that boost the strength of ices. There is Rime, Brasília Government Grid, Helheim Servers and Corporate Troubleshooter.

Isaac Liberdade had an advantage over all those strength booster. First, an advancement is put on the ice, which can be used for other purpose later and second, moving around means Isaac Liberdade can go protect the most vulnerable server.

In the startup format, boosting the strength count more, since breaker availability is not the same. Also, there are ice that get better the more advancement they have, such as Ice Wall, Logjam, Colossus and Mestnichestvo. Getting a free advancement on those, on top of boost to the ice strength, is precious.

Sadly for Isaac Liberdade, it will be matchup dependent. Against a runner who has Lobisomem, boosting by +2 means an extra cost of only 1 for the runner. This also does not help against bypass effect, such as Physarum Entangler, neither does it do anything against direct sub breaking, such as with Boomerang or Botulus. This is why it is not much used in standard, as it would be very much matchup dependent. Adding to this that Isaac Liberdade cost 3 to use. Making it more useful in a glacier deck, where multiple ice can get those counters, thus costing the runner much more than the price of Isaac Liberdade.

At 2 influence, the card could be imported out of faction. But since you can get Corporate Troubleshooter for 1 influence and probably a much stronger effect, then you have to evaluate how good it is in its slot. But, if the runner has to face 3 ices that are 7 strength in a row, it might be enough to secure a remote. It would also allow a corp to have lots of cheap ice that would get a decent strength.

I only wish there was a bit of space for a quote, to give us a sense of the character of Isaac Liberdade. Otherwise, the name is nice ("Libertade" = "Freedom") and the art is very much in line with the idea of a Weyland system operator (sysop). Well done.

Nanuq (🐻‍❄️) is kinda like a “Current AI”.

Unlike other temporary icebreakers (Mayfly, Revolver, Propeller, etc) it's not recurrable/rechargeable, because it RFGs (not trashes) itself.

And unlike Runner currents (Rumor Mill) or single-turn icebreakers (Chameleon), it only helps you steal agendas during a single run.