First, the "villainous choice" effect actually allows your opponents to choose impossible actions
Preordain gives you 4 options: Card A & B on top then draw, Card A on top and B on the bottom, Card B on top and A on the bottom, and Cards A & B on the bottom then draw
You can only tap a creature when you need to attack, activate its ability, or pay a specific cost
Other stores opt to have a slightly more beginner-friendly model for their prereleases and provide participants with a starter deck and a select number of packs from the new set
Commanders like Kenrith, the Reurned King or The Scarab God appreciate the extra mana too
Even with that keyword, Pearl Lake Ancient isnt the most imposing threat in the multiverse, especially when you factor in paying 7 mana for it