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Made a water + grass variant of Tangrowth few years back. Pokedex entries are:
Version A:
>The thick layers of seaweed which cover its body prevent further investigation of what actually lurks underneath. When happy or victorious in battle, the Pokemon will blow bubbles out of its snorkel appendage.
Version B:
>It can blast large amounts of water from its coral cannon arms which it uses to clean the beaches of dirt and litter. At sunset, it can be seen admiring its work from afar as it bobs in the sea.