Owain is hot on the case to see why we don't (but should) see more monocolor Commander precons
The high mana value of this card makes it unplayable unless its in a deck that can cheat it onto the battlefield
-10: Draw three cards
However, I felt obligated to include it as the 2020 yearbook winner for most likely to be mutated. The full value of its keywords and any counters you paid for contribute to the creature you mutate over it, making for some really terrifying threats
For those hunting Curios, its worth checking the list of all discovered ones here: Given the Site distribution limitations for constructed play, Id recommend new players consider starting with a Precon, or supplementing a Beta box with an additional box of another set and/or singles if you want to build legal constructed decks immediately
Instead, players usually set their own subjective goals: build around this specific commander, avoid using any non-elf creatures, or creating the largest, messiest stacks possible with Grip of Chaos and Hive Mind