Field of Ruin An excellent main deck answer for creature lands and the Castle cycle, every mono- or 2-colored deck should run one or two Field of Ruins
If theyve put a lot of spells on the stack, perhaps by storming off with Weather the Storm, you can drop Mindbreak Trap to exile every single one of those copies, completely nullifying their storm
Incredibly, Garth allows players to make a copy of the famous Black Lotus
At best, they may take a mechanic and push it a little
Bounce lands, in my opinion, are one of the most underrated and underutilized lands in EDH, and, to be clear, Im talking about casual EDH, not cEDH
PrintMTGs proxy/playtest cards are designed around that in-sleeve consistency idea: standard MTG sizing, familiar feel, and predictable finishing so your deck doesnt end up with one card that behaves like its trying to get caught