pokemon card mewtwo 10 102 - Base Set Encased in a durable acrylic holder to highlight the vibrant artwork of this fan Mewtwo #10 Prices | Pokemon

This is a so called turn-based action, it doesnt use the stack

Uro, Titan of Natures Wrath Uro, Titan of Nature's Wrath isnt as dominant in Commander as in Standard or Modern, but that doesnt mean it cant hit hard

However, there is a glimmer of hope for Isolation Tower: it's possible that some decks will want to use the card offensively to fight through Leyline of Sanctity

Since you wont necessarily know when that opportunity will arise, leaving a large amount of mana available every turn might not be practical

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A turn-3, 4/4 flier is very hard for a lot of decks in the format to contend with