Like most Pokmon cards, the value of Mewtwo depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Legends Awakened)
By paying four generic mana, you can put one +1/+1 counters on it, and by removing one +1/+1 counter you can have it deal one damage to target creature or player
#5: Kaiser Eagle, the Heavens Mandate As far as championship prize cards go, they dont get much bigger, or more expensive, than Kaiser Eagle
The Comprehensive Rules also say: text that refers to the object its on by name means just that particular object and not any other objects with that name
Note that you get a gold counter whenever a Dragon enters the battlefield, not just when cast, so it works with cheat effects (Zirilan of the Claw) and tokens (Lathliss, Dragon Queen)
However, keeping in mind set-specific mechanics, there are several tried-and-true guidelines players can use to solidify their Sealed deck building practice and get the drop on the competition