Notably, once it begins to resolve, none of your opponents may take actions that might change the result before it happens, such as casting a spell that destroys one of your historic permanents
The other resource, and this one is particularly good for finding unloved or underappreciated cards, is Scryfall, specifically the advanced search
( Look at the top card of your library
Now The Rack deals 3 damage to them
Theres that person at your LGS who not only overtunes their decks for your local meta while pubstomping noobs or throwing in infinite combos despite the typical rule 0 talk (or maybe in spite of is actually correct for once)
It can blow up in your face, but more often that not, you can sculpt your hand to achieve either the result you want or an acceptable loss