Leyline of Dread(maw)

If this card is in your opening hand, you may place it onto the battlefield before the game begins.

All cards you own on the battlefield are named Colossal Dreadmaw in addition to their other names, are Dinosaurs in addition to their other types, are Green in addition to their other colors, have a base of 6 power and toughness along with trample, and cost 4 colorless and 2 green mana.