Goblin Game: Each player hides a nonland card from their hand, then all cards are revealed
Shessra, Deaths Whisper On entering the battlefield, Shessra, Death's Whisper forces a creature to block this turn, and the expectation is that itll die
In artifact ramp decks, especially with Karn, Legacy Reforged, it comes down earlier than expected and creates huge pressure
Loxi: Creatures that have this effect tagged onto them can be really helpful for decks that want a syngeristic way to protect their board without needing to waste a slot on an instant if their deck doesn't need one as much
#2 Untimely Malfunction Set: Duskmourn: House of Horror Market Price: $7.02 Whether in competitive sideboards or as part of the 99 in Commander decks, Untimely Malfunction works (ironically) as a flexible tool that can fix nearly any situation a red mage might find themselves in