Heggen reassures me that they are thoughtful about what new Secret Lair cards are doing to strategies outside of Commander, saying we're not trying to accidentally ruin those formats by casually printing hyper-powerful cards into them. That said, the concept of mechanically unique Secret Lair cards existing at all has been a hot topic in the community regardless of power level
Three of them, Goblin Warrens, Goblin Assault, and Goblinslide, provide us with goblin tokens that serve as cannon fodder
This can fit in any aggressive deck, especially ones that play larger creatures that youd want to give haste
There is a lot of ramp in the deck, meaning you can build a huge mana pool quickly with cards like Khalni Heart Expedition, Font of Fertility, and Omen of the Hunt
Access to a chosen Supporter on demand is invaluable for any competitive player
Absolutely, and I would urge you to get a better box to keep them safe, but the heart of the set, the actual cards themselves, are everything a dyed-in-the-wool Magic: The Gathering fan could ask for