The 30th Celebration set contains around 150 cards after secret rares
Some people use Pecharunt to add exactly the two cards they want, while others use Professor's Research to draw 7 cards, pulling both of those desired cards while aiming for further high-rolls with the remaining 5 cards, and some people use Fezandipiti ex's Flip the Script to draw both of the cards they want
The fireworks pattern, in this Pokemon trainers opinion, looks stupendous on Water-type cards and especially good when paired with the best Kanto starter (dont @ me)
Unlike Normal Spells, they stay on the field once the Chain resolves
When Tiamat enters the battlefield, if you cast it, search your library for up to five Dragon cards not named Tiamat that each have different names, reveal them, put them into your hand, then shuffle
Lizard Soldier is particularly interesting, since its name explicitly identifies it as a lizard, and not a dragon, and honestly does kinda look like some nice, tropical lizard