Against decks that include a lot of fetch or sacrifice lands, Blood Moon has proven itself time and time again
Right now, as seen in top-level play and the shaky online client Pokemon Trading Card Game Live , competitive Pokemon is dominated by one two-card combo: Archeops, with its rapid energy acceleration ability, and Lugia VSTAR, with a quick and easy way to get two of them in play
Thats not bad, but Hide on the Ceiling does quite a lot more than that
If Heliod, God of the Sun slowly increased due to Commander demand, the Secret Lair version will likely go along for the ride, but there is little reason to expect any Secret Lair card to end up being worth x5 or x10 its original printing, even in the semi-distant futurethey are just too common