Horde invites 3 Strengthened Skeletons to join the Hero on every loop and, better still, these three do not count towards the player’s maximum Skeleton count.

Ambitions of the Dead heals a Skeleton, completely - and grants the Skeleton an additional 10% to damage and HP until the end of battle - after they kill an enemy.

Laying Down One’s Life diverts any direct damage away from the Hero and splits it evenly among their summoned Skeletons.

Art of Control increases a player’s maximum number of Skeleton summons by one.

Edge of Impossible provides a 20% chance for players to exceed their maximum allowance so that 2 skeletons are summoned, instead of one, on their final summon.

Supplies allows the player to store 10% of the supplies they’ve gained whenever they pass through a campfire tile.

Shield of Faith provides one Stained Glass charge (up to a maximum stack of 3) which has a 20% chance of protecting the Hero.

Axis Tilt causes time to flow 25% more rapidly alternatively, players can choose another Trait if they know how to unlock Loop Hero's Temporal Beacon.

Surveyor provides Loop Hero players with Loop HP, an amount of HP equal to 0.5 times loop level, every time the Hero passes by a roadside tile that's adjacent to a building they've placed.

Skilled Architect awards an amount of experience, equal to 8 times loop level, any time the player places a Building tile.

Post-Mortem Toll provides the player with a 30% probability of receiving a random, basic resource chunk after killing an enemy.

Deep Pockets increases the resource cap by 50%.

Omicron’s Technique grants an additional resurrection charge, allowing the Hero to be immediately resurrected with 100% HP upon death.

The Traits in this list can be unlocked by all classes in Loop Hero:

Loop hero wiki