There are a few decks that actual turn this rule into an exploitable advantage, using it as a free discard outlet to pitch giant creature cards to Reanimate next turn or a Dredge card such as Golgari Grave-Troll for subsequent self-milling, but in what I would call fair decks, this maximum hand size rule is not nice, especially when you are mana-screwed
"Cyber Dragon" Extra Deck monsters have varied effects and varied applications: the Fusion Monsters focus on raw damage output, two "Chimeratech" Fusion Monsters feature unique Summoning conditions that let them act as special forms of removal, the Xyz Monsters focus on controlling the game state, and the Link Monster provides situational utility
Facilier, Remarkable Gentleman Rare 64 Friends on the Other Side Common 101 Dr
BTW: personally I am sure if the Pikachu Illustrator was given out at a TCG event we would have seen more copies before the big hype started 2 years ago
Disney Lorcana: Rise of the Floodborn features more than 200 new cards with brand-new artwork