Most importantly, the Dragonite card art is beautiful, and Dragonair is pretty nice, too
You get an emblem with "You may cast spells from your hand without paying their mana costs." Tamiyo's first ability can target creatures you don't control
Your Extra Deck can be anywhere from 0 to 15 cards
It stops your opponent from playing spells with even CMCs, and if they control any creatures with even CMCs, then they can't block (and your opponent wouldn't be able to play any more of them anyway)
Llanowar Elves and Burning-Tree Emissary combine with Nyxthos to make turn two Nissa, Who Shakes the World possible, though turn three is far more common
8 Elektross Stun Your Opponent Elektross is a Stage Two Pokemon, so you might find yourself needing a few turns before you can get it in play