Green Dragon, for example, is a six-mana 4/4 with flying and the Poison Breath ability
If typal creatures arent your thing, then Aragorn, the Uniter can be taken in any number of directions, and Lord of the Nazgl turns each of your tricky spells into a deadly Wraith
It cant really turn artifacts into creatures, but rather it copies any permanent and makes a 5/5 artifact version of it
Pelt Collector and Ghalta, Primal Hunger also like to play with a lot of other creatures, and Nullhide Ferox further pushes us away from wanting noncreature cards
Thinking outside the box, we head for Dragon Cultist and provide additional Fling effects to make sure we can deal damage for Dragon Cultists ability to triggerthen the Dragons it creates are fodder for Shadowheart
Thats not to say these cards are bad in other Commander decks, but rushing out a turn 8 play on turn 5 or 6 just doesnt have the same level of impact on gameplay as rushing out a turn 3 or 4 play on turn 1 unless its winning you the game right then and there