For most constructed decks, around 22 to 26 lands is common, though ramp spells or artifact cards that produce mana can change that number
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I would also add something that gives flash like Leyline of Anticipation, which happens to be an enchantment, or Heliod Radiant Dawn // Heliod the Warped Eclipse which can act as kind of a backup commander and synergizes with Animatous surveil
