Broodmate Dragon When looking at expensive spells I like to use the slump test
Nothing exotic needed, just the standard care you would give any modern chase-adjacent card
However, If you choose a target creature in your graveyard, and that card is an illegal target when the ability tries to resolve, it wont resolve and none of its effects will happen
Chase mythics in Commander-focused sets tend to hold value better than combo pieces that can be banned, making the Cosmic Cube a safer long-term hold than Bruce Banner if competitive bans become likely
Once resolved, he rewrites them entirely
While Wizards of the Coast has been careful with how they reprint cards from this set (often as judge promos with limited distribution), theres always that risk lingering in the background