function greaterHeal()
    gh_shouldStop = gh_shouldStop or false
    gh_castFinishTime = gh_castFinishTime or 0
    gh_nextCastAt = gh_nextCastAt or 0

    local currentTime = GetTime()
    local gh_cooldown = spellCooldown("Greater Heal")

    if gh_cooldown > 0 then
        gh_castFinishTime = currentTime + 2.5 - 1.5 + gh_cooldown
        gh_shouldStop = true
    end

    if UnitHealth("Target") > UnitHealthMax("Target")-2000 and currentTime > gh_castFinishTime-0.2 and gh_shouldStop then
        stopcast()
        gh_nextCastAt = currentTime + 0.2
        gh_shouldStop = false
    end

    if gh_cooldown <= 0 and currentTime > gh_nextCastAt then
        cast("Greater Heal(rank 2)")
    end
end