Lost Caverns of Ixalan

This Crazy TMNT Shredder Combo Can Basically Ruin an Entire Game of Magic In One Fell Swoop - IGN

A powerful combo involving the Teenage Mutant Ninja Turtles' Shredder, Shadow Master card and Bloodletter of Aclazotz from Magic: The Gathering's Lost Caverns of Ixalan set can lead to an instant win. The combination allows a player to halve an opponent's life total multiple times in a single turn, effectively eliminating them from the game.