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However its adviced to check with the judges

Current text: Whenever Goblin Snowman blocks, prevent all combat damage that would be dealt to and dealt by it this turn

In fact the printing of Unholy Heat (and to an extent Solitude) has mostly pushed out cards like Tarmogoyf out of the format, as the removal in the format is now so efficient that creatures either need to be one-mana, so you trade at an even level (Dragons Rage Channeler and Ragavan, Nimble Pilferer), too large to be killed by Unholy Heat (Deaths Shadow and Murktide Regent) or generate immediate value upon being played (Solitude, Fury and Omnath, Locus of Creation)

And Green is the color of ramp and can cast this mid-game if you want to and then you can win the game with this card draw machine