This is because the other four colored mana symbols are in its rules text for its activated ability
So, if you havent learned how to play Magic: The Gathering yet and are just shopping around, you may want to brush up to make this list more readable
When you are simultaneously growing your Questing Druid or triggering Thor's ability, you can attack their mana base while pressuring their life total at the same time
Growing Rites of Itlimoc / Itlimoc, Cradle of the Sun One of the best flip lands in Magic, Growing Rites of Itlimoc wont immediately help with mana ramp when you first play it
If you don't cast it, draw a card
The land card you put onto the battlefield can be one that was just milled, or it can be one that was already in their graveyard