Great Nature is a Clan from the nation of Zoo. It is an universtiy of animals. They work by giving effects to rear guards(usually a +4000 power but sometimes a crit) At the cost of that unit being retired at the end of the phase. There are also effects where once a unit is retired some effects will activate, like drawing cards or unflipping damage in the damage zone.  Starting from soaring ascent of Gale and Blossom They started focusing on drawing cards and giving boosts to rear guards that have an attack of  20000 or higher.

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