Bounsweet

Bounsweet has the ability to fully heal your ally Pokemon when placed. This is great if your opponent used the spell "Only One" to reduce your Pokemon's HP to 1. However, Bounsweet only has 0.5 ATK, so you can use Morelull or Shiinotic to boost its ATK to 3/6 (3 - Morelull, 6 - Shiinotic).