Mardu gives access to the best warlocks and the outlaw payoffs are quite powerful
In Limited, it's good if you can use it to support attack triggers or survival while compressing your deck, but be careful not to let it fizzle by becoming a target for removal in the late game
Other games do not have such direct reaction systems but allow players to cast face-down cards or "traps" that automatically trigger based on the actions of the opposing player
If a replacement effect (such as that of Leyline of the Void) causes any of the sacrificed creatures to be exiled instead of put into a graveyard, those cards aren't returned to the battlefield.
Luffy Serialized Lottery Prize #109 Serialized cards sit at the very top of the rarity hierarchy, and this Luffy lottery prize remains one of the most elusive releases in the game
SM1+ Strengthening Expansion Pack: Sun & Moon Energy Evolution Eevee got a little upgrade in Japan, in the form of a mirror foil version