original mewtwo pokemon card value proxy cards first edition foil (Base Set 2 B2 10) Preserved in a tamper Mewtwo (14/63) [WoTC Promo] –

According to EDHREC, over 71,000 decks use Gaeas Cradle within the 99, however, many players might want that number to be higher

But wow this is such an interesting way to deal noncombat damage in commander

That prevents this from becoming a tier one Commander staple, but flavor and uniqueness should still keep this in the $1-$2 range long term

Spending the full eight mana to cast it as a 5/5 does mean you can send it in as a 9/5 during your next turn which is pretty darn good if your opponent doesn't have an answer for it

This may not be necessary, however, given the Dragons second ability, which lets him regenerate for just two black mana, thus avoiding the majority of destruction-based removal