Tifa Lockhart is an amazing 2-drop that doesn't mess around with land drops
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And its not like you have to pump mana into it to make it big either, unlike if you had multiple copies of a creature with monstrosity
For example, Roost of Drakes will always have a mana value of 1, even when cast for 4 mana with its kicker, Voidpouncer will always have a mana value of 2, and Murasa Sproutling will always have a mana value of 3, etc
Sure, your opponent gets too as well, but if youre dropping a creature with an exceptionally powerful enter the battlefield trigger, like Atraxa, Grand Unifier, a creature that is practically unstoppable like Emrakul, the Aeons Torn, or an enchantment that gives you free rein to do whatever you like Omniscience, you basically guaranteed a win