Queen Marchesa The Monarch is a highly useful status to have in MTG, activating a boatload of additional effects on cards that rely on this ability, as well as restocking your hand by gaining an additional draw at the beginning of the end step
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For two mana, the Liberator is basically the gold standard in what to expect from a creature that can destroy an artifact or an enchantment
Its just a cheap commander that produces Treasure in a color pair well-positioned to maximize it
Unless the opponent has whiffed hard, they should have something in hand to stop it, as theyll have had the chance to prep plenty of lands in the time it takes to get the resources to play Jumbo Cactuar
And then remember when he completely fell out of favour due to his prohibitive cost and lack of good Shift targets