This means that for a 6-drop, it won't do anything when it's played, and even then, there are better cards to use
But if you got some powerful but highly situational cards in your library, you may want to try to retrieve them using this spell
Party Thrasher is a red mana Lizard Wizard Creature that can both exile cards and make casting from exile much cheaper
Herd Heirloom is a cheap mana rock that can help you draw more cards
With cards like Drover of the Mighty, Channeler Initiate, Pillar of Origins, Unclaimed Territory, and Attune to Aether in Standard, it's not hard to get the mana you need to play the best Dinosaurs from each color
The advantage seems too minimal for constructed formats unless you build around the card