Deep Trouble rules sheet*
Toss in the fact that Thalia, Guardian of Thraben already has several printings including a WMCQ Promo with unique art and I'd guess that the pricing of the different versions of Thalia, Guardian of Thraben will look much like the pricing of the different Secret Lair printings of Serum Visions with the one with the most desirable art being slightly more valuable than the rest, but the total value ending up right in the $30 or $35 range
The Secret Boomer History of this card is that back in the day, when casual players were terrible (unlike today, right?), we used to say things like: I am packing Swords for emergencies, and also in case I need to get rid of my Force of Nature or Lord of the Pit! I mean, you could do that, sure, but we were so worried about life we actively sought ways to play Stream of Life in our main deck
Add: PSA Grading Fee: $25 Shipping to PSA: $10 Return Shipping: $10 Risk of PSA 8 instead of PSA 10: If you get a PSA 8, the card drops to $80
Every single one of them was mono-colorless not because of the spells, but the lands
Even if you've already completed previous sets, duplicate protection will kick in
