If you have blocked your opponents creature that has First strike and it did not defeat your creature, then your creature will apply damage to it in the next combat step
Yes, Mega Dragonite is ridiculous with those wings coming out of its head (god, imagine the pain of flying), but it looks resplendent here, and even better for being surrounded by Dragonair in that swirling background
The back is also worth noting, as it seems that at the time, there was no proper Pokmon card back just yet
If you play other games, like Magic: The Gathering, you'll find that the sleeves for Pokemon also fit MTG cards
The Levels of both monsters become their combined original Levels
Drawing that extra card on the draw was a welcome mulligan insurance