| deuxhero |
The Divine Source mythic ability makes you like a deity, which is neat on its own, but also gives one domain spell of each level (up to your tier or tier+1 with Seat of Power) as an SLA. What's good domain picks to abuse the SLA part? The typical way to abuse SLAs with your choice of spell is to pick something with expensive components and/or a long casting time, which isn't common in domains..
Magic with Rites subdomain is a standout. Free Permanency (and Magic Mouth) every day is really good, while the Divine domain gives Bless Water, Resurrection and Miracle. War with Tactics gives free Greater Planar Ally, but comes really late (what are your Planar Allies anyways?). Souls for Repose gives Animate Dead. Luck with Fate gives free, standard action Augury, which is easily abused, and is another source of Miracle. Healing with Resurrection gives some free rezs, but is otherwise useless. Glory with Honor has more standard geas and free gate. Artifice gives Fabricate (which is broken without components, though in which way isn't clear) and Limited Wish with construct. Death gives a bunch of free undead making.
Outside of the standard abuses: Liberation/Strength's Self-Realization gives Paragon Surge without race restrictions, which is pretty good, especially on a spontaneous caster. Nobility with Leadership gives Brilliant Inspiration, which is normally unusable only by 16th+ level bard, and is another source of standard action Geas.
Any I missed?