Separate life drain, reflected hits and skill counters.
On successful basic hits, bows skip both life drain and damage reflection. Drain restores a damage percentage, capped by missing recoverable HP. Reflection damages the attacker without subtracting the incoming hit; it is capped at the defender maximum HP. Invulnerability and raid level checks can suppress reflection.
Unenchanted Vampiric Rage levels 1 to 4 add 6%, 7%, 8% and 9% life drain respectively. The base duration is 1,200 seconds, or 20 minutes. Other buffs, enchant routes and custom servers require their own values.
Unenchanted Reflect Damage levels 1 to 3 add 10%, 15% and 20% reflected damage. These percentages do not mean that every spell is returned or that incoming damage is reduced by the same amount.
Physical skill counters use a separate chance and only accept non-magic skills within melee cast range. Debuff reflection uses separate physical or magic reflection chances and rejects non-debuffs or skills with activation rate -1. Do not use the ordinary Reflect Damage percentage for either mechanism.