Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Noble Hierarch

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
{T}: Add {G}, {W}, or {U}.

Activated abilities of artifacts can't be activated.

Your opponents can't cast spells from anywhere other than their hands.

Flying
Activated abilities of creatures your opponents control can't be activated.