Why not Hullbreacher
Whether you are looking to play MTG for your first time on a budget, returning and not wanting to buy the necessary lands, or wanting to take a simpler, more aggressive approach to the meta, monocolored decks suit a variety of needs and are necessary for the current format's ecosystem
(20, 17) Prowess Turn 3: Play Mountain, cast Manamorphose, cast Swiftspear, cast Dart, attack for 5 (20, 11)
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It's a great tool for protecting creatures from certain types of removal, especially when you can toss one around at instant speed