Without engaging in the interminable black hole of a conversation about what makes a good/playable Magic: The Gathering card in general, I hope you see my point here
I've opened over 800 packs, Wonder Picked 233 times, and make sure to always like my friends' showcases
Realm Seekers: An awesome mid to late game play in Commander
So, Im choosing to leave out a top 3 for that, especially when you consider that the uncommon spot has additional oddities with how to handle the Retro artifacts
In MTG terms, the castle and its awesome beast become the Legendary Snow Land Dark Depths - spend 30 mana to melt away the card's Ice counters, and it transforms into the preposterously deadly 20/20 Indestructible flyer Marit Lage - renamed The Black Beast of Aaargh , perhaps Python cartoonist Terry Gilliam's most terrifying creation ever (unless you've seen any of his horror movies, that is)
How can I recover?! There are times when, despite your brain telling you its a bad idea, your heart tells you to persevere