Shriekwood Devourer is a great addition to our Treefolk Tribal since it is a powerful Treefolk that can be used either as a finisher or as a powerful ramp engine. By attacking, it let us untap up to X lands, where X is the greatest power among our creatures. That sounds not very synergetic with a toughness build, but given the fact that it has 7 power, it can alone net us an amazing amount of extra mana and given the fact that Treefolk are mana-heavy, that ramp can be extra useful. Moreover, even an average Treefolk with 3-4 power can give us respectable ramp power on the same turn Shriekwood Devourer enters.
Great Oak Guardian gets cut because it costs a lot and the buff it provides doesn’t come with Trample, so it has less impact on late game, where Shriekwood Devourer can really shine.
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