The Warlord is a Starter Universal Prime Helix Card.
How to get
The Warlord is available for all players. This card cannot be crafted or dismantled.
When creating a new deck, you are given a choice between 3 Prime Helix Cards, this card being one of them. Selecting it will add the card to your deck. You can replace your Prime card at any time by removing it from your deck. The Warlord does not take a card slot.
Activating the Prime Helix buff
After defeating the Prime Helix Guardian he will drop the Orb Prime Buff, which will grant the effects of this card if you are carrying it. Your teammate's Prime card will also active when you pick up the Orb.