Cuts both ways
Tsurugi a double-edged sword of Japanese antiquity can either end the run or do a max net damage if it's s are able to fire, typically though it is chosen for its 4x taxing capabilities
Taxing: along with Komainu Tsurugi, Tollbooth and other taxing ice are often placed on key servers to maximize cost to the runner. Jinteki: Replicating Perfection perhaps could focus the runner's attention on central servers giving the corp fewer places to guard for the first run
Buff Strength: At only 2 strength Tsurugi is an obvious target for Parasite, Mimic etc. Combined with strength buffing options such as Chum, Corporate Troubleshooter, Experiential Data, IT Department, Lag Time, Patch etc all can improve Tsurugi making it more taxing and potentially out of reach for some ice breakers. (Switchblade still makes Tsurugi sad in most cases)
Flatline window: With a possibility of creating a flatline window for the corp, it can possibly be followed up with the runner accessing a Snare!, Certainly use a House of Knives token if available! (Not quite flat-lined? Perhaps finish the runner off with a couple Neural EMP when corps turn rolls around)
(Did I miss something obvious, I'd appreciate suggestions in the comments below, I may add it to this review)
ETR or Tax Unlike much of the Jinteki's porous ice suite, Tsurugi actually provides an End the Run allowing the corp some flexibility in protecting a server. (albeit at 1 added cost to tax)
Net Damage or Tax whether the runner pays to break the 4 s or takes the 3 net damage either-way it could cost the runner significant momentum or worse.
At 6 to rez, it can be costly particularly in the early game to rez, corp will need to hold 7 in reserve in order to fire it's 3 net damage s
With it's End the run first, If corp ends the run, then the remaining 3 's don't fire.
As a double-edged sword Tsurugi lends flexibility to fast-advance & kill/trap decks which at very least is able to tax the runner (in most situations) however on the other side of the sword with it's low strength and somewhat high rez cost it's not quite the most dependable tool for it to come anywhere near auto-include status.
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