Over $50 (Premium) Gaea's Cradle ($400+), Serra's Sanctum ($200+), Mishra's Workshop ($1,500+), The Tabernacle at Pendrell Vale ($2,000+), Imperial Seal ($50$80), Force of Will ($60$100), Lion's Eye Diamond ($150+), Mox Diamond ($300+), Chrome Mox ($50+), Survival of the Fittest ($100+), Intuition ($80+)
The Amber and Amethyst deck is probably the easiest to master, while the Ruby and Emerald deck is the trickiest of the three to understand, although its probably the most flexible and adaptable of the three decks
Toughness-Matters Removal Cards Some removal spells can be very cheap, with other requirements that must be satisfied
They generally cost 4 mana, but cheaper effects rank highly because it's hard to contest the monarch when you take it early
Blood Servitor can be played in any deck to help you create a Blood Token