Hello everyone. This is my first post to this site so I hope I am doing this well. I wanted to share the deck I just used to grind from Bronze 3 to Masters over this past week. Its not perfect, but I am working on optimizing it. This is the version I used while grinding. I feel it has a lot of potential. Its a very fair deck and has all the tools to beat most decks you will face on the ladder. If you try this you may want to add seek powers and more lands. I started to run both of those things but kept getting flooded. So far the draw spells and scout lands have been enough to keep me going.
I have found the Primal Justice Time and Primal Justice Shadow control decks that do not do anything except kill whatever you play are a little troublesome, but I think maybe the right sideboard cards will take care of those.
Here is a theoretical sideboard. The midrange matchups are pretty good mainboard, so this is mostly to give an edge against fast aggro and control.
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Lightning Storm Good against aggro decks and token decks. Kills little creatures and strips aegis.
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Unseal Counterspells are always underrated in eternal. Creates tempo and shuts down big plays.
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Rain of Frogs Great against Clockroaches and other combo type decks. Remove win conditions from slow control.
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Flamestoker Great against control decks where you cant keep threats on the board.
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Scourge of Frosthome