To illustrate that, we've already seen a second version of Sam: Sam, Loyal Attendant
You really want to play this when nothing is in their hand, forcing them to discard that threat
Its like a Demonic Pact that doesn't make you lose the game
Genuine cards show a thin, even structure
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
Getting to cast a fight spell on demand whenever one of your big Beasts enters is solid enough, but Slinza actually triggers off of your opponents creatures too