- Cannot challenge other players.
- Shares the held bounties of the summoner.
Guardian appears in Bounty Hunt Mode as a minion that can be purchased from Armories, with a base price of 100. It holds one copy each of , , , and , and stars equal to the amount that was spent on it upon being summoned. It may play any of its held cards when appropriate, using its own stars and the player's level at the time of summoning for the purpose of card requirements.
- Guardian can be seen as an good counterpart to . The two characters use almost identical sprites to each other, and have similar Japanese names. In addition, The Harbinger's development name is evilguardian.
- Although Guardian has default sprites for no color equipped, these are never seen in-game, as both Guardian minions and Guardian from Knights and Faeries always have a player color equipped.