Now that quantities of Secret Lairs are even more limited, they will likely be sold at an even higher markup on the secondary market when, before, scalping Secret Lairs was a risk because most players simply bought them directly from Wizards when they could
If Cover the Spot is sleeved, the dropped cards may also be sleeved
Because it triggers from a mana ability and produces mana without targeting, Overgrowth creates a triggered mana ability
Also, sliver decks tend to go pretty wide so being able to tap all your creatures to draw a card, while also dealing massive amounts of damage each time is busted
Inventors, Mythic A classic Elf from Magic: The Gatherings past is Ezuri, Renegade Leader, a favorite win condition for Elves players in Commander and Modern