Agents

One pick each, locked for the match. Your team can't double up, but the enemy can run the same agent as you.

Tailwind

First one on site. Gone before you can trade.

Passive: Double jump every 10s.
Active20s cooldown: Right-click the mace for Jump Boost IV for 5s.

Bastion

Starts every weapon a tier up and can't be shoved off a plant.

Passive: Density, Wind Burst, Sharpness and Lunge all start at tier I.
Active: Resistance II the whole time you're planting.

Shuriken

Chips you down from range, then isn't there when you turn.

Passive: 5 shurikens a round. Half a heart each, plus Slowness II for 4s.
Active60s cooldown: Right-click the sword to go invisible for 10s. Dealing or taking damage breaks it.

Light

Stand near them and you hit harder and move faster.

Passive: +2 hearts.
Active: Teammates within 5 blocks get Strength II and Speed II.