Cameo

In 2023, Magic: The Gathering R&D started experimenting with cameos, where an old mechanic appears once in a premier set on a card at a higher rarity. 
==Description==
Cameos are non-deciduous and non-evergreen mechanic that only occurs on one or few cards in a set, often put in as a mechanical call-back to previous blocks, but without the density to be relevant in wider play. Occasionally, the mechanic is spelled out in rules text as an Easter egg and to save learning space for newer players. The name is derived from the film and television practice of known characters or actors making short appearances.
The rules for cameo cards require that they're relatively simple and don't have a history of balance issues. 
It is relatively easy to do more one-of existing ability words in sets, as the card text explains everything, and thus an ability word comes at less of a mental cost.
==List of cameos==
Set 	Cameo mechanic	Card
Phyrexia: All Will Be One 	Battle cry 	<c>Ria Ivor, Bane of Bladehold</c>
Wilds of Eldraine 	Skulk 	
The Lost Caverns of Ixalan 	Battle cry 	
The Lost Caverns of Ixalan 	Rebound 	
The Lost Caverns of Ixalan 	Adventure 	<c>Kellan, Daring Traveler</c>
Murders at Karlov Manor 	Wither 	
Murders at Karlov Manor 	Adventure 	<c>Kellan, Inquisitive Prodigy</c>
Outlaws of Thunder Junction	Investigate 	
Bloomburrow 	Storm 	
Duskmourn: House of Horror 	Ninjutsu 	
Duskmourn: House of Horror 	 	
Duskmourn: House of Horror 	Shard token 	<c>Niko, Light of Hope</c>
Aetherdrift 	Embalm 	
Aetherdrift 	Exert 	<c>Basri, Tomorrow's Champion</c>
==References==
Category:Mechanics