Three-color cards require a lot of fixing to be reliably castable, and they have to be desired and drafted by the right player to show up at all
Spawning Kraken makes tokens once you get going, Scourge of Fleets is practically a 6/6 Cyclonic Rift, Serpent of Yawning Depths puts your opponents on a fast clock, and Hullbreaker Horror is just one of the best blue creatures
If you dont sneak it out, its a less color-intensive Diabolic Tutor
Then, Safe Room at 2G offers consistent free face-ups so long as they deal combat damage, enabling surprise reveals when attacking with face-down cards en masse, or even if you simply want a steady board growth
Look for cards like the Kodama of the Center Tree, the Enchant Creature Threads of Disloyalty, or the Legendary Creature Spirit Kira, Great Glass Spinner
The Charizard that everyone wants in this set is the secret art rare, that features charizrd flying out of a Volcanic alley into the sky, which matches Charmanders and Charmeleons art style too