REX

REX is a playable character in Risk of Rain 2. They use powerful attacks that cost HP, but heal HP from some attacks, so their HP may change rapidly while using abilities. To increase consistency and survivability, their passive helps REX deal more damage while also taking less.

Tips

 * The can be particularly effective on REX when used in conjunction with Tangling Growth. Use the black hole to gather up enemies and launch Tangling Growth into them, or pull enemies towards an already-planted Growth.
 * Items that trigger upon taking damage (such as ) can be very effective, especially if using Seed Barrage.
 * Walking backwards, jumping, and using DIRECTIVE: Disperse at a downward angle can launch REX quite a long distance in a desirable direction.
 * Using DIRECTIVE: Disperse 3 times in midair with a will push the player backwards at very high speed.
 * The Afterburner reduces the cooldown enough that REX can effectively fly everywhere, although it is somewhat challenging to control.
 * Using Seed Barrage resets the attack cooldown of DIRECTIVE: Inject, allowing REX to attack much faster than normal.
 * It is highly recommended that the player avoids and  when playing REX. These items can replace health with Shields, which cannot be recovered from healing and only recover over time after avoiding damage. This can totally cripple REX as their abilities Tangling Growth, Seed Barrage, and Bramble Volley take a percentage of health, but it cannot be recovered by using Tangling Growth, DIRECTIVE: Inject, or Bramble Volley.
 * It is highly recommended to avoid when playing REX, as using any self-damaging skill will cause the player to lose gold rapidly.
 * Natural Toxins, Tangling Growth, & DIRECTIVE: Harvest all count as debuffs, allowing REX to activate with only 2 additional debuffs as opposed to the usual 4.
 * Due to the high health-to-HP-gain ratio of Bramble Volley, it is often recommended to take it over DIRECTIVE: Disperse. In addition, Bramble Volley can be used to knock oneself back as well, and as such can be used for mobility in the same manner as DIRECTIVE: Disperse.
 * Tangling Growth's root can be used to entirely hold down areas, regain good amounts of HP, and lock enemies in place for either a Seed Barrage, DIRECTIVE: Drill volley, or a Bramble Volley.
 * Tangling Growth can root the, although this is not quite as effective as outright freezing him as.
 * Tangling Growth can slam flying enemies into terrain for high damage. This can be used to easily defeat the by smashing it into the central pillar at the right angle.

Trivia

 * REX is referred to internally as "Treebot."
 * The Smoothie skin used to be a light green & pink with blue flowers.