Haste
Undergrowth — Golgari Raiders enters the battlefield with a +1/+1 counter on it for each creature card in your graveyard.
Because tokens aren’t cards, they never count for undergrowth abilities.
Creature cards with other types, such as artifact creature cards, count for undergrowth abilities.
If you return Golgari Raiders from your graveyard to the battlefield, its undergrowth ability counts itself.