It forces you into an expensive and high maintenance manabase
For example, in a Standard format tournament, could I use Salvatore on a Raichu to search for Raichu BREAK
The two-sided mats will cost you $39.99
Where there are outlaws, there are wanted posters, and Outlaws of Thunder Junction has a passel of ne'er-do-wells featured in the wanted poster treatment found in Play Boosters and Collector Boosters
Most valuable Black Bolt and White Flare Pokmon cards The values on Black Bolt and White Rare chase cards might see astronomical, but it will likely end up being a lot cheaper to just buy the cards you want
Nashiwari Surprise X TRAP Target 1 Set card your opponent controls, or, if you control a "P.U.N.K." monster, you can target 1 face-up card your opponent controls instead