These boxes are all great options that will allow you to pull a variety of unique trading cards
Start with the amount of damage being dealt to the creature and determine what is "lethal." This is the creature's toughness minus the amount of damage that it already has marked on it, but ignoring any replacement or prevention effects that will modify this damage
Pay attention to cards casuals like
Ureni, the Song Unending Ureni, the Song Unending costs a lot, but is fully worth ramping into and jamming when the time is right
Latias ex (Special Illustration Rare) embed::[[Latias ex (sv8-239)]] Next up is Latias ex an unsurprising inclusion high on the list as it has heritage fetching huge prices with cards such as the Latias & Latios GX Tag Team card from the Sun & Moon era and the Latias ex from Plasma Freeze from the Black & White days
(2021-06-18) If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs