2010-06-15 Training Grounds won't affect a cost that isn't the cost to activate a creature's activated ability
The Carnelian Orb of Dragonkind and the Jade Orb of Dragonkind are red and green mana rocks that tap for mana and give the Dragon you cast with it a bonus
Ayula, Queen Among Bears Heres an example list from a Modern Horizons draft a friend of mine (Slatorade) did: The only spells in this pile of 36 Forests are Ayula's Influence (all lands can be instant, 0-mana 2/2 bears), Ayula, Queen Among Bears herself (2/2 for one green that rewards you for putting bears into play), and two Winding Ways which would almost always draw four Forests
By contrast, the archenemy is strongly incentivised to load up on sweepers, each opponent effects and other multi-target spells which can drain the hero side of significant resources per cast
Just to drive home how expensive this could end up being, there's an eBay listing with the current bid at $905
Lozhan is another part of this puzzle, and well be throwing fireballs around with ease in this deck