Hello, and welcome to the December update of my Hammer sideboard guide. Quite a lot has changed in the format since the last instalment was published, so let's waste no more time and jump right into it.

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Introduction
Modern metagame is oscillating from one/two best archetypes one week, to completely different constructions soon after that. RB Scam and Creativity can take down big tournaments and completely disappear soon after that happens. Later Jeskai Breach Combo looks like the best deck in Modern but I do not expect it to stay this way. But no matter what the best and the second best Modern decks currently are, Hammer still can give a fair fight to all those. And can still keep winning. Different flex slots provide tools to fight specific matchups, but I think that...