Essentially your whole deck hinges on your opening hand...you MUST have at least 2-3 lands in your opening hand, hope you draw 1-2 more in the next few turns, and hope you either start with or draw Treefolk Harbinger, Bosk Banneret, and Leaf-Crowned Elder within the first few turns...which wallisface has pointed out even if all that works out, Leaf-Crowned Elder has no built in protection and you have no ability to provide any
Creatures that provide additional benefits, like card advantage or creature removal, are premium
Zetalpa, Primal Dawn is one of the most reprinted elder dinosaurs from Rivals of Ixalan , and its easy to see why
Khenra Spellspear had the ability to transform into a Creature with two instances of Prowess that stacked for each noncreature spell cast
Where to Buy Secret Lairs Lightning Greaves | Illustration by Rudy Siswanto This is a hard category to really give a recommendation for since, by their nature, Secret Lairs are meant to be in limited supply
(1) Collectors guide