// The more the step counter has advanced, the greater the piety
        // cost is.

        // If vitalisation has succeeded, pay the extended piety cost,
        // based on how far the step counter has advanced.

        // If there's not enough piety left to vitalise again, turn off
        // vitalisation chaining.  Note that, if the piety cost for this
        // in abl-show.cc::Ability_List[] is changed from 2, this needs
        // to be changed as well.
        if (you.piety < piety_breakpoint(1) + 2)
            need_chain = false;

    // Whether vitalisation has succeeded or failed, pay the minimum
    // piety cost.
    lose_piety(2);

    // If there's not enough piety left to vitalise again, turn off
    // vitalisation chaining.
    if (you.piety < piety_breakpoint(1))
        need_chain = false;

    ABFLAG_PAIN         = 0x00000004, // ability must hurt player (ie torment)
    ABFLAG_EXHAUSTION   = 0x00000008, // fails if you.exhausted
    ABFLAG_INSTANT      = 0x00000010, // doesn't take time to use
    ABFLAG_PERMANENT_HP = 0x00000020, // costs permanent HPs
    ABFLAG_PERMANENT_MP = 0x00000040, // costs permanent MPs
    ABFLAG_CONF_OK      = 0x00000080  // can use even if confused.

    ABFLAG_PIETY        = 0x00000004, // ability has its own piety (ie vitalise)
    ABFLAG_PAIN         = 0x00000008, // ability must hurt player (ie torment)
    ABFLAG_EXHAUSTION   = 0x00000010, // fails if you.exhausted
    ABFLAG_INSTANT      = 0x00000020, // doesn't take time to use
    ABFLAG_PERMANENT_HP = 0x00000040, // costs permanent HPs
    ABFLAG_PERMANENT_MP = 0x00000080, // costs permanent MPs
    ABFLAG_CONF_OK      = 0x00000100  // can use even if confused

    { ABIL_ZIN_VITALISATION, "Vitalisation", 0, 0, 100, 2, ABFLAG_CONF_OK },

    { ABIL_ZIN_VITALISATION, "Vitalisation", 0, 0, 100, 0, ABFLAG_PIETY | ABFLAG_CONF_OK },

    if (abil.piety_cost)

    if (abil.piety_cost || abil.flags & ABFLAG_PIETY)