Scheußlicher Scherge

Fahl
Wenn du diesen Zauberspruch wirkst, übernimm von jedem Gegner bis zum Ende des Zuges die Kontrolle über bis zu eine Kreatur deiner Wahl, die jener Spieler kontrolliert. Enttappe sie. Sie verursachen Trampelschaden und erhalten Eile und Vernichter 1 bis zum Ende des Zuges.
Verursacht Trampelschaden, Eile, Vernichter 1

Surveillant hideux

Carence
Quand vous lancez ce sort, pour chaque adversaire, acquérez le contrôle de jusqu'à une créature ciblée que ce joueur contrôle jusqu'à la fin du tour. Dégagez ces créatures. Elles acquièrent le piétinement, la célérité et annihilateur 1 jusqu'à la fin du tour.
Piétinement, célérité, annihilateur 1

忌まわしき監督官

欠色
あなたがこの呪文を唱えたとき、各対戦相手につきそれぞれ、そのプレイヤーがコントロールしているクリーチャー最大１体を対象とする。ターン終了時まで、それらのコントロールを得る。それらのクリーチャーをアンタップする。ターン終了時まで、それらはトランプルと速攻と滅殺１を得る。
トランプル、速攻、滅殺１

骇人工头

虚色
当你施放此咒语时，为每位对手各进行以下流程～获得至多一个目标由该牌手操控的生物之操控权直到回合结束。重置这些生物。它们获得践踏、敏捷与歼灭1直到回合结束。
践踏，敏捷，歼灭1

Hideous Taskmaster

Devoid (This card has no color.)
When you cast this spell, for each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain trample, haste, and annihilator 1 until end of turn.
Trample, haste, annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.)

Modern Horizons 3 Commander

Devoid
When you cast this spell, for each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain trample, haste, and annihilator 1 until end of turn.
Trample, haste, annihilator 1

A card with devoid is just colorless. It's not colorless and the colors of mana in its mana cost.

Annihilator abilities trigger and resolve during the declare attackers step. The defending player sacrifices the required number of permanents of their choice before they declare blockers. Any creatures sacrificed this way won't be able to block.

Devoid doesn't affect the color identity of the card for the purposes of the Commander variant. For example, while Abstruse Appropriation is colorless because it has devoid, its color identity is still white and black, and it can't be included in a Commander deck where the commander's color identity doesn't include both white and black.

Devoid works in all zones, not just on the battlefield.

Hideous Taskmaster's second ability will resolve before Hideous Taskmaster does. If Hideous Taskmaster is countered or otherwise leaves the stack in response to that triggered ability, the triggered ability will still resolve as normal.

If a card loses devoid, it will still be colorless. This is because effects that change an object's color (like the one created by devoid) are considered before the object loses devoid.

If a creature with annihilator is attacking a planeswalker, and the defending player chooses to sacrifice that planeswalker, the attacking creature continues to attack. It may be blocked. If it isn't blocked, it simply won't deal combat damage to anything.

Other cards and abilities can give a card with devoid a color. If that happens, it's just the new color, not that color and colorless.