"Thopters are but one option in our suite of autonomous surveillance solutions."
—Kylox

"Os tópteros são só mais uma opção em nosso catálogo de soluções de vigilância."
— Kylox

Arenque Vermelho

Ímpeto
Arenque Vermelho ataca a cada combate se estiver apto.
{2}, sacrifique Arenque Vermelho: Compre um card.

「我们有许多自动化布控方案，扑翼机不过是其中一种。」
～奇洛兹

扰神红鱼械

敏捷
扰神红鱼械每次战斗若能攻击，则必须攻击。
{2}，牺牲扰神红鱼械：抓一张牌。

「飛行機械は数ある自立型監視案の一つに過ぎません。」
――カイロックス

赤ニシン

速攻
各戦闘で、赤ニシンは可能なら攻撃する。
{2}, 赤ニシンを生け贄に捧げる：カード１枚を引く。

„Außer Thoptern bieten wir noch andere autonome Überwachungslösungen."
—Kylox

Roter Hering

Eile
Der Rote Hering greift in jedem Kampf an, falls möglich.
{2}, opfere den Roten Hering: Ziehe eine Karte.

"Los tópteros solo son una de las opciones de nuestro catálogo de soluciones autónomas de vigilancia".
—Kylox

Pista escamante

Prisa.
La Pista escamante ataca cada combate si puede.
{2}, sacrificar la Pista escamante: Roba una carta.

« Les mécanoptères ne sont qu'une option parmi notre gamme de solutions de surveillance autonome. »
—Kylox

Poisson-leurre

Célérité
Le Poisson-leurre attaque à chaque combat si possible.
{2}, sacrifiez le Poisson-leurre : Piochez une carte.

"I totteri sono solo una delle opzioni nella nostra gamma di soluzioni per la sorveglianza autonoma."
—Kylox

Depesciaggio

Rapidità
Il Depesciaggio attacca in ogni combattimento, se può farlo.
{2}, Sacrifica il Depesciaggio: Pesca una carta.

Red Herring

Haste
This creature attacks each combat if able.
{2}, Sacrifice this creature: Draw a card.

Murders at Karlov Manor

Haste
Red Herring attacks each combat if able.
{2}, Sacrifice Red Herring: Draw a card.

Mystery Booster Playtest Cards 2021

{1}{U}: Exchange Red Herring from your hand with a permanent you control on the battlefield or a spell you control on the stack. If that permanent or spell was the target of a spell or ability, change that target to Red Herring.

Mystery Booster Playtest Cards 2019

{1}{U}: Exchange CARDNAME from your hand with a permanent you control on the battlefield or a spell you control on the stack. If that permanent or spell was the target of a spell or ability, change that target to CARDNAME.

If Red Herring can't attack for any reason (such as being tapped), then it doesn't attack. If there's a cost associated with having it attack, its controller isn't forced to pay that cost, so it doesn't have to attack in that case either.