Whisper of the Dross⁣ - Phyrexia: All Will Be One⁣ (Common)⁣ [117]

Whisper of the Dross allows you to weaken a target creature by giving it -1/-1 until the end of turn, which can help eliminate threats in combat or remove blockers. The proliferate ability lets you add more counters to any permanents or players that already have them, making it effective in decks that rely on counter strategies, such as those focused on poison counters or loyalty counters. However, its effect is temporary, so timing is crucial for maximum impact.