Pokmon is a registered trademark of Nintendo, Creatures, and GAME FREAK
It provides versatility by allowing you to Special Summon non-WIND roid monsters from your Deck and Fusion Summon roid Fusion Monsters from your Extra Deck
(It is worth pointing out that one of the Standard sets announced is set in a modern urban environment and is about five Mafia-like crime families, which is also pretty far from traditional fantasy, so perhaps the Vorthos-focused criticism isn't really about Secret Lairs or IP crossovers but the direction that Magic is heading as a whole.) If your problem with the Fortnite Secret Lairs is that they are Secret Lairs or that you prefer the game to remain "high fantasy" and not stray into other areas, I can certainly respect and empathize with that position
If you have 10 or more in the Lost Zone, you can drop Fantina [Lost Origin] to reduce incoming damage by another minus 120 to make it minus 220 total
While burn decks and Exodia decks have their own way of winning the duel, I find the quickest, most reliable, and definitely the most fun way of winning is to run your opponent down with insanely strong monsters