Tarantula Pet

The Tarantula Pet is a Combat Pet. It is one of three pets obtained from mobs used in slayer quests, with the other two being the Hound Pet and the Ghoul Pet. It only has two rarities, and.

Obtaining
Unlike most other pets, the Tarantula Pet has two separate ways of obtaining it. First, it is a rare drop from most Spiders in the Spider's Den, with a 1/12000 chance of dropping. It can also drop from Arachne with a much higher chance. The  variant drops from the  HP version while the  variant drops from the  version. Unlike dragon fights, the drop chance isn't affected by how many Keeper Fragments you placed, only by your position on the damage leaderboard.

Kat Caretaking Costs
Kat can upgrade all rarities of this pet except legendary; this costs varying amounts of coins and sometimes resources. For each level the pet has, there is a 0.3% discount. For example, at level 50 there will be a 15% discount to the price listed below. Also, the cost listed is for the pet of that type to be upgraded, after which time the rarity will be that of the above type. The time listed is also in real life days as opposed to the in-game equivalent.

Trivia

 * Unlike the Wolf Pet, the Tarantula's Combat XP buff only increases XP gained from Spiders. However, the ability is noticeably stronger and, along with the other abilities, it's the ideal pet to use for Spider Slayer.
 * The Tarantula Pet is the only pet in the game where its and  variants can be obtained from two completely different sources. The Magma Cube Pet is similar, but differs in rarity.