As for the exclusion cost, he can also use spells and traps, so you can use used roars as a cost, and you can return the excluded monster with D, D, and R, and you can collect it with trance Archfiend, so you can use it as a combo
THIS PRODUCT RELEASES ON 08/28/2026 AND WILL SHIP ON OR BEFORE RELEASE DAY
This is as close as blue gets to Plague Wind, completely resetting your opponents boards while leaving yours untouched
On a negative note, Skarmory is indeed a Mega Evolution, which comes with the clear risk of giving a lot of advantage to your opponent if it falls in battle, so that is the entire reason why I didnt dare include it higher on the list
A birthday present here, a few dollars saved there, and you can over time acquire all the goodies you might want