Even with the 50% more effect than Sleight you will find that Adventurous Impulse is less good sooner than the maths would suggest (ie when your deck is a third non-creature, non-land cards)
It's a creative take that adds to the card's charm
Pairing it with something likeUltron, Artificial Malevolence, which lets you copy artifacts by paying two mana and turning them into creatures, could get out of hand quickly
Just to reiterate, this isnt a list of every archetype in Commander, but it encompasses the majority of the most widely-played strategies, with overlap between them, and plenty that split off into their own subsets of micro-archetypes
You may look at the top card of your library any time
When you look at a card, examine how well the picture is centered within the borders and check for any dings on the corners or whitening along the edges