You need 56 Slayer to kill this monster and it gives 99.5 slayer XP.
Charm Drop Rates
These have low defence and fast spawn rate. They make decent training, but are unaggressive. You will need to use the Crystal chime on it first, or you will not damage it. The period of vulnerability wears off after a minute. It is yellowish when invincible and greyish when vulnerable. Once you use the chimes on this monster the examine information switches to "This tortoise looks a little more vulnerable now." The chimes will be used automatically if the are in your inventory.
A familiar with BoB might come in handy here, as it has a lot of drops.
You don't think you can harm this creature; This tortoise looks a little more vulnerable now.
Rune pickaxe, Rune warhammer, Starved ancient effigy
Big bones (100%), Coins (35-174), noted Cabbage (4-52), Sulphur, Tortoise shell (1-3), noted Mithril ore (3-6), noted Coal (6-14), Weapon poison, Law Rune (3-6), Swamp tar (10-32), Mithril warhammer, Adamant hatchet, Adamantite ore, Mithril platebody, Perfect shell (1-3), Tangled toad's legs (1-3), Long bone, Nature talisman, Curved bone, Gold charm, Green charm, Crimson charm, Blue charm, Law talisman, Rune javelin (5), Rune spear, Humerus Bone