New themes can be made by combining cards with previous sets
6 Ninetales: Dragon Frontiers (Holo Rare) $47.70 Enter The Dragon Frontiers As you might expect, Dragon Frontiers is packed with valuable cards, though Ninetales stands out from the variety of Dragon-type Pokemon you'll find in the set
Mana sources that produce more than they cost: Mox Diamond, Chrome Mox, Mana Vault, Grim Monolith, Ancient Tomb, Lion's Eye Diamond
You can only activate 1 "Monster Reborn Reborn" per turn.
Rushing River (Invasion/Planeshift/Apocalypse) Why bounce just one creature when you can bounce a second for the cost of a land
This is supported by Ari Nieh, a designer and White's representative in the Council of Colors, who had this to say about Mangara: Mangara, the Diplomat signals the beginning of WOTC warming up to White getting some forms of good card draw, and I for one am extremely excited for it