Bulbasaur

Seed Pokémon ^#1

There is a plant seed on its back right from the day this Pokémon is born. The seed slowly grows larger.

While it is young, it uses the nutrients that are stored in the seed on its back in order to grow.

- Overgrow
  When this Pokémon has 1/3 or less of its HP remaining, its grass-type moves inflict 1.5× as much regular damage.

- Chlorophyll
  This Pokémon's Speed is doubled during strong sunlight. This bonus does not count as a stat modifier.

It can go for days without eating a single morsel.
In the bulb on its back, it stores energy.