Need Sideboard Advice/Guide for SCAM

The RCQ Season starts and I play Scam. Now I need an updatet Sideboardguide with bowmasters I only have the old one from Mengucci(Channelfireball)

Does Anyone have one? I saw a lot of Phyrexian Metamorphs and Sheoldreds in the board, on which matchups do you board them in, especialy Sheoldred scince you already have bowmasters to punish carddraw, why do you need extra hate in the Board, 4 mana also seems a lot. I like Pyromancer more in the grindy matchups as a sideboard choice against 4 Color and Murktide.

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My current Sideboard looks something like this:

3 Chalice of the Void

1 Push

2 Seasoned Pyromancer

1 Hidetsugu comsumes all

2 Engineered Explosives

2 Blood Moon

1 Magus of the Moon

1 Cast into Fire

1 Phyrexian Metamorph

1 Path of Peril

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I also see a lot of one offs Nihil Spellbomb and Pithing needle but I don't now how necessary they are since they are only one offs and against graveyard decks you already have 4 Voidwalker main.

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