Demonic Guardian

Rank	Effect	Flavor
1	Automatically summon a weak demonic ally when in danger (white imp, lemure, ufetubus, crimson imp, or iron imp).	A weak demonic guardian rushes to your aid.
2	Summons average demons (sun demon, sixfirhy, soul eater, ice devil, or smoke demon).	A demonic guardian rushes to your aid.
3	Summons powerful demons (reaper, cacodemon, executioner or balrug).	A powerful demonic guardian rushes to your aid.
Summons occur when tension is high and end when tension drops. Higher ranks require higher tension to trigger. Summons will not occur while worshiping Okawaru. See Demonic Guardian page for exact mechanics.
Good mutation, Demonspawn mutation

Mechanics

You will receive a demonic guardian when the following condition is met:

   (3/4)*tension > mutlevel*6 + 1d(2*mutlevel*mutlevel) - 1

Note that this check occurs every turn, until a guardian is summoned. Thus, the random factor simply makes summons take longer for 'middling' tensions.

After receiving a guardian you will not receive another one for another (1+mutlevel) to (20+mutlevel) turns. Guardians have a 2/3 chance of vanishing each turn if tension drops below the requisite amount required to summon them, although they are guaranteed to exist for 4-7 turns. The guardians always spawn friendly, but will be angered if you attack them. Hostile guardians will not unsummon.

History

In 0.14, this mutation will no longer be suppressed while worshiping Okawaru, as Okawaru will no longer mind the death of allies.