The best example of this is mill, which meant to put cards from your library into your graveyard long before it was formally codified in Core Set 2021
It will let all of your sources deal double damage until your next turn, so that's now on your turn, you attack, your damage-based sorceries and loads more
It is not quite the same as other card draw as well, much like the new Commune with Lava you only get one turn to play with the cards so you need to set up well for the event
This, in combination with Hatterene's Ability, Hazard Sensor, can make them a very tricky pocket monster to deal with for opponents who tend to attack directly
So if we're trying to be optimized, don't fight it, go all-in on Cloud