The simplest way to decide what cards are worth trading is whether or not youll use them
So, this added upside of turning into a copy of creatures in your graveyard is pretty amazing, especially because it holds on to flying A gravedigger with Menace that can also get back enchantments is a card Id already play, and this can also get larger
Tutors Once more a scarce few tutors, but they help you find what you need when you need it
This is way too all in on only doing one thing
If it enters the battlefield at the same time as an Island when you control no other Islands, it will enter tapped
If you own a local store, or maintain a display case of cards for a store, you should keep Secret Lair cards obvious and visible for all the people who had no idea this was a thing