Burn is rarely completely gone from the Modern metagame, due to its power and linear nature
On the other hand, Ruric Thar really does slam the door on certain control decks, demanding that they have an immediate wrath (and even sometimes killing them if they do)
Tap all five lands to produce at least five mana, use three of it to activate Emiel on the Peregrine Drake again, and the combo is ready to go
Dance Princess of the Ice Barrier X WATER Level 4 [ Spellcaster / Effect ] ATK 1700 DEF 900 Once per turn, if you control another "Ice Barrier" monster: You can reveal any number of "Ice Barrier" monsters in your hand, then target an equal number of Set Spells/Traps your opponent controls
There are many other powerful cards out there like these ones, but I definitely don't have time to cover them all in one article
I grew up with gen 1 and 2 so those would be the only locations i know, like seafoam islands and ilex forest/slowpoke well