Part of what makes the card such a sweet build-around is that its first two abilities are naturally pretty strong by themselves
On the one hand, they die to board wipes, and on the other hand, they also synergize with creature-based strategies
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+)
Toughness-Matters Removal Cards Some removal spells can be very cheap, with other requirements that must be satisfied
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