Upon entering the battlefield, its controller has the option of having it fight a creature, making it effectively function as removal, or it can enter with twice the number of +1/+1 counters, making it a flexible hydra that can supply a great deal of value
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For that, Jet Medallion, Ruby Medallion, Bontu's Monument and Hazoret's Monument can knock a significant amount off (with Hazoret's Monument also helping with the draws), letting us plug more of our other mana sources into that X cost
In lists like Grixis Deaths Shadow, it can even assume creative offensive roles by buffing up Deaths Shadow or removing Kroxas sacrifice trigger
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