The first is a triggered ability: "When this permanent enters the battlefield, target player may search their library for a card named [name], reveal it, put it into their hand, then shuffle their library." (2023-06-16) Note that the target player searches their library (which may be affected by effects such as that of Stranglehold) and that the card they find is revealed, even though these words aren't included in the ability's reminder text
Dreamscape Artist is great for this since you can discard a land to the Spellshaper ability, sacrifice a land, and go put two basic land cards onto the battlefield, netting two +1/+1 counters for your Slogurk
Doubly narrow in fact
the same applies if youre a deck that doesnt really produce tokens, but you have a token player in your pod
It means even after this explosive turn, if there is anyone left, you can still reasonably block the crack-back
After digging through all of these different mill cards, trying to understand how they have contextually changed we must turn to the final question: what will we be using Bruvac the Grandiloquent for