Gear requirements for dps:
T80+ Ranged/Magic Power armour
T85+ Ranged/Magic weapons
70 Prayer w/ Knight Waves training ground miniquest complete OR 95 Prayer with The Temple at Senntisten quest complete
67 Summoning for the war tortoise familiar
At least Grand potions for your combat style, Extremes or Overloads preferrred
The Greater+ runic accuracy/sharpshooter aura, depending on style
The World Wakes quest completed for access to Sunshine and Death's Swiftness
Gear requirements for pet tanking:
Same as above, with the addition of:
A T85+ Ranged/Magic mainhand weapon and shield
Gear requirements for base/backup tanking:
Same as above, with the addition of:
At least three pieces of the Ranged/Magic Raids tank gear, preferrably helmet/gloves/boots
A T85+ Ranged/Magic mainhand weapon and corresponding spirit shield
The Penance aura
96 Herblore for Overload potions
YAKAMARU:
Gear requirements for dps:
T80+ power armour, preferrably augmented with perks (Ranged/Magic recommended for beginners)
T90+ weapons, preferrably augmented with perks (Ranged/Magic recommended for beginners)
95 Prayer with The Temple at Senntisten quest complete
96 Summoning for the pack yak familiar
96 Herblore for Overload potions
Supreme accuracy aura or berserk aura, depending on style
The World Wakes quest completed for access to Sunshine and Death's Swiftness
Gear requirements for major tank roles (Shark10, North, Base):
Same as above, with the addition of:
Five pieces of the Raids tank gear, preferrably augmented with perks
(For Shark10, three pieces of Raids gear and augmented Ports armour with perks is sufficient)
A spirit shield, corresponding with combat style
The Penance aura
The Light Within quest complete for the Fortitude prayer (especially important for Base)