TLDR : Great cards do not significantly drop in price when they rotate out of standard, as great cards are usually playable and viable in other formats
It also limits the amount of burn and direct damage that Wizards is comfortable with existing in the same environment
Or more specifically, the Offspring keyword courtesy of Zinnia, Valley's Voice
A very interesting mono-blue Commander in his own right, Im mostly looking forward to slotting him into Shiko & Narset, Unified
So its particularly exciting to see them making their debut here, especially as they first appeared in MTG overall in the 2011 Innistrad set
However, in the Ask Wizards section on November 10, 2005, a player pointed to several inconsistencies in Buehler's story and suggested that Coldsnap was in fact a newly designed set