I don't have much experience with Beguiler, but if you're looking for your cipher side to also be a spellcasting powerhouse, I highly, highly, highly recommend Ascendant. The sheer amount of focus you get is crazy, and the -1 power level isn't that extreme of a downside for casting powers w/o max focus. Of course, when you get max focus, you get to throw out ANY cipher spells you have one after another until Ascended mode turns off.
If you're really concerned about that -1 power level, go Nature Godlike and use the Fleet Feet or Infuse w/ Vital Essence spells at the start of any fight to negate it.
EDIT1: As for Hierophant advice, I'd say be aware that your HP is pretty darn low (38 starting + 8 per level, before any constitution bonuses or maluses) comparatively speaking, so you will probably want to go with a party and send your tanks into combat first before you attack or charm from stealth. In addition, you don't have any summons or mobility talents to keep enemy rogues and heavy-hitting melee units busy, so you might want to save your heavy-hitting wizard spells or defensive abilities for those occasions in which an enemy does manage to get close to you. Perhaps invest in alchemy for quick healing or explosives for a quick stun option against enemy rogues.
EDIT2: On the other hand, the combination of wizard & cipher should provide a powerful toolset for wreaking havoc on enemy formations from afar. Probably focus on charming enemies with cipher spells during the early game and using wizard spells to nuke/quickly eliminate priority targets with high will, such as spellcasters. Maybe consider taking Soul Shock or Mind Wave to give you some early-game damage spells that you can use without worrying about losing resources. I would recommend targetting ranged units first, then rogues with your charms, as those have the most capability to hurt you even as you try to keep your distance.
Edited by hansvedic, 13 June 2018 - 11:54 AM.