Je was op zoek naar: smokescreen (Engels - Japans)

fred: smokescreen!
煙幕を食らえ！

the competition was a smokescreen.
コンペはヤラセだった

a smokescreen to conceal my true identity.
私の正体を隠すためだ

that would create a smokescreen concealing your very small spell from davina.
いい隠れ蓑になるわ 貴方の小さな呪文は隠れ ダヴィーナには気付かれない

and gareth here says that you guys think this aurelius thing may be just a smokescreen.
ガレスが言うには 今回のアウレリウスの件は 偽装かもしれないと 君たちは考えているそうだが

our troops in the north put down a smokescreen and under cover they withdrew a little while our bombers went in in three deadly waves to deliver a large aerial bombardment and one of the heaviest of the whole campaign.
北の我が軍は 煙幕を張り こっそりと、少し後退した 一方、爆撃機は３回にわたり

if deleting 30,000 calls is the simpler solution, then that's likely just a smokescreen to hide the one call that our friend is truly concerned about.
3万の呼び出しを抹消するなら 簡単な解決策だ 偽装行為の可能性が高い 1つの呼び出しを隠す