Cactos

Cactos is the last of the three biome bosses, and can only spawn after defeating both Dirtskin and Snow Killa. It has only one phase, but has more defence, but in pay less KB resist. Cactos has a 15% chance to spawn each day in the desert, but can be spawned by throwing cactus in lava.

Fight
When summoned, a gigantic cactus will fall out of the sky and the battle will happen right away. Cactos will run after the player, and randomly, throw spikes (like the ones on real life cacti) from the sky. They inflict the Pricked debuff on contact. Other than that, Cactos really isn't a threat.

Drops
ONLY ONE OF THE FOLLOWING WILL DROP: ONLY DROPS IN EXPERT MODE:
 * 30 Cactus Blocks (100%)
 * 2 Waterleaf Seeds (25%)
 * Mask (14.5%)
 * Trohpy (10%)
 * 5 Antlion Mandibles (25%)
 * Cacti Prisim (Same Stats as Terrablade, just magic, uses 30 mana per blast) (25%)
 * 5 More Cactus (25%)
 * 1-3 Thorns Potion
 * Cactos Treasure Bag

Aftermath

 * Cactus is now sold by the Merchant for 65 Copper Coins
 * The Holder of Souls can now spawn.
 * Vultures, Antlions and Mummies have +5 defense.
 * Desert enemies will now fight for you.
 * Water now gives you a slight speed boost while in the desert.


 * Spider Nests are now replaced with Corruption or Crimson, based on which in the world.

Updates

 * 1.4: Cactos added.
 * 1.4.3: Spike Rain attack added, along with Cactus now sold by the merchant after defeat.
 * 1.4.7: Vultures and Antlions now fight for you after defeating.
 * 1.4.8: Other desert monsters now attack for you, along with some other rewards.