刺客 しかく戦術 せんじゅつじゃなかったです
shikakusenjutsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 刺客戦術

1. Wasn't assassin tactics.; Wasn't an assassin's strategy.

Past/Perfective
Negative
Polite
Casual Register