Chatter in the Lorcana community is an odd mix of wailing/gnashing of teeth, assumptions that the game is just going to continue on without noticeable change, some time to go back to Magic sentiment, somber resignation in the face of inevitability, a few weirdly celebratory posts, and patronizing explanations of Pixelborns legality from the well, actually set
If this Extra Linked card attacks your opponent directly and reduces their LP to 0, you win the Match.
The second way is to make your own Fusion Spell, like Shaddolls and Gem-Knights
In pretty much every game we played, both players inevitably ran out of cards in their hand and for the rest of the game they were at the mercy of their topdeck
This planeswalkers -2 ability gives you the best creature on the board, and you can do it again next turn, should the dragon stick around