Compare:
Use this program only if you trashed any of your installed cards this turn.
Interface → [$1]: Break up to 2 sentry subroutines.
[$2]: +3 strength.
This card doesn't need you to sacrifice something every single turn to be used (if necessary), but it does want you to Always-Be-Sac'ing (for efficiency).
Synergies
Feeding the Fire Snake: Boi-tatá’s “Sacrifice-matters” mechanic (e.g. If you trashed any of your installed cards this turn, …
) obviously synergizes with the self-sacrifice ‘trashcan’ (e.g. Gachapon’s [TRASH]: …
), as well as with sacrificial additional/alternative costs (e.g. Isolation’s As an additional cost to play this event, trash 1 installed resource.
).
For example, by pre-installing Gachapon or Arruaceiras Crew, if you facecheck an strong/tall sentry, you can crack them to halve Boi-tatá’s boost/break costs.
For another example, Aesop's Pawnshop can both cheapen the abilities each turn (with its clickless sacrifice) and fund either cheapened ability being used once (with the three extra credits).
Cards (self-sacrificing):
- Gachapon, Stoneship Chart Room, No Free Lunch, etc.
- Arruaceiras Crew, Boomerang, Flip Switch, etc (which also help you run more easily/safely with just a killer, by breaking/shrinking/killing/dodging non-sentries).
- Simulchip, Self-modifying Code, etc (and these can be sac'd mid-run).
- Hannah "Wheels" Pilintra, Light the Fire!.
- Daily Casts, Liberated Account, etc. (but these take time).
- Earthrise Hotel, Dr. Nuka Vrolyck, etc.
- Fermenter, Friend of a Friend, etc. (but these also takes a click without starting a run.)
Cards (sacrificers):
- Aesop's Pawnshop.
- Isolation, Spec Work, etc.
Notes
Rules:
- Because it reads
any of your installed cards
, it will work off resources as well as off programs/hardware. - Because it reads
you trashed
, it won't work off the Corp’s destroyers (e.g. their Hagen’s↳ Trash 1 installed program that is not a decoder, fracter, or killer.
), nor off “self-exiling” hardware (e.g. Devil Charm’s and Hippo’s…, you may remove this hardware from the game. If you do, …
). - IIUC, if your “hard-purgeable” virus (e.g. Clot or eXer) gets purged (e.g. by Mavirus mavirus), still "the Runner trashed it", even though "the Corp caused it to be trashed"?
Related (other “sacrifice-matters” cards):
- Simulchip:
… Ignore this cost if an installed program has already been trashed this turn.
Flavor
Boi-tatá is a fantastic creature belonging to the Guaraní mythology, it is a myth from Brazil, Paraguay, Uruguay and Argentina, this creature is a huge fire serpent that appears and attacks against those who harm the forests and animals of the Amazon. He is the Brazilian equivalent of the will-o'-the-wisp.
Its name comes from the union of two Guaraní words mbói (snake) and tatá (fire), the result being Mbói tatá in the original language (Guaraní) which means "Serpent of Fire".
Links:
Does his 'Threat 4' ability reduce his own rez cost? He is a card in the root of this server, so it should work. In general, abilities that reduce rez costs are active during the rez. This should be added to the Rulings of the card.
— Krams