Grass Pledge is a damaging Grass-type move. If a teammate uses Water Pledge in the same turn, a swamp will be created on the target's side of the field for four turns that halves the Speed of Pokémon. If a teammate uses Fire Pledge in the same turn, Fire Pledge's effect will be triggered. In both cases, Grass Pledge's power is doubled if it is used after the other pledge move.
By Egg Move