32 cards where the colors is R and the text includes “sacrifice” and the text includes “opponent”

Alchemist's Talent (Bloomburrow Commander #22)
Aspiring Champion (Warhammer 40,000 Commander #71)
Awaken the Sky Tyrant (Commander 2015 #24)
Balor (Commander Legends: Battle for Baldur's Gate #162)
Call for Aid (Tales of Middle-earth Commander #30)
Case of the Burning Masks (Murders at Karlov Manor #113)
Custody Battle (Onslaught #197)
Demanding Dragon (Forgotten Realms Commander #120)
Earth-Cult Elemental (Adventures in the Forgotten Realms #141)
Embraal Gear-Smasher (Aether Revolt #79)
Falkenrath Pit Fighter (Innistrad: Midnight Hunt #137)
Hedron Detonator (March of the Machine Commander #31)
Jalum Grifter (Unglued #47)
Longhorn Firebeast (Torment #103)
Penregon Strongbull (The Brothers' War #147)
Pyretic Prankster // Glistening Goremonger (March of the Machine #157)
Pyretic Prankster // Glistening Goremonger (March of the Machine #157)
Quest for Pure Flame (Zendikar #144)
Retribution (Masters Edition II #148)
Rose, Cutthroat Raider (Fallout #66)
Ruinous Minotaur (Zendikar #145)
Shrapnel Slinger (Phyrexia: All Will Be One #148)
Silverclad Ferocidons (Rivals of Ixalan #115)
Six-y Beast (Unsanctioned #56)
Slicer, Hired Muscle // Slicer, High-Speed Antagonist (Transformers #6)
Slicer, Hired Muscle // Slicer, High-Speed Antagonist (Transformers #6)
Storm Fleet Arsonist (Ixalan #162)
Tempest Efreet (Fourth Edition #225)
Tyrant of Discord (Avacyn Restored #162)
Vengeful Tracker (Murders at Karlov Manor #147)
Vexing Devil (Ultimate Masters #154)
Visions of Ruin (Midnight Hunt Commander #36)
War Elemental (Mirrodin #112)
Yawning Fissure (Magic 2010 #164)

In the blink of an eye, they strode from deep snow to the end of this search.