The Clue tokens represent a lot of card advantage, but a creature that spews artifacts is useful in other ways, especially alongside cards like Reckless Fireweaver
It's pretty easy to ascend in Commander, and you should almost always have the city's blessing by the time it makes it back to your turn
Is this the best Pacifism effect we've had
However, Liliana should have discarded their entire hand already, so it's a pretty unlikely scenario that your opponent will have an answer
Skirk Prospector, Mogg War Marshal, Goblin Matron, Goblin Warchief and Goblin Ringleader made up for quite a powerful mana and card advantage engine
Proposed Commander Power Bracket by Wizards of the Coast Commander Power Brackets are among the first topics to discuss, which to me feels like trying to formalize the 10-point scale that Commander players use to informally discuss power levels, especially during Rule 0 conversations