Say a monster/NPC/whatever seeks a defense against reading his mind, but doesn't want to tip off would-be mind readers with a Ring of Mind-Shielding or something similar that just shields his thoughts. Instead, he wants them to believe they have successfully read his thoughts but in fact have gained misinformation. How can he do that?

I'm looking for existing ways to do this, not just making it doable with homebrew or DM fiat.

  • \$\begingroup\$ Are you looking for RAW, story justifications, or homebrew items/skills/spells? Those will get you very different answers. \$\endgroup\$ – SirTechSpec Mar 31 '16 at 18:35
  • \$\begingroup\$ @SirTechSpec- RAW preferably, but I am open to homebrew solutions. \$\endgroup\$ – king of panes Mar 31 '16 at 18:41
  • \$\begingroup\$ Detect thoughts reads surface thoughts initially. When you say "fake", do you consider "I thought about unicorns for 5 minutes" faking a thought or misleading the caster? \$\endgroup\$ – Premier Bromanov Mar 31 '16 at 23:33
  • \$\begingroup\$ @PremierBromanov- I mean misleading the caster, for example someone who seems to be the party's ally but in fact is directing them toward a trap. \$\endgroup\$ – king of panes Mar 31 '16 at 23:37

The Soul of Deceit ability, gained from level 17 Mastermind Rogues in SCAG, allows the user to have his thoughts shielded and even to lie through telepathy. It also allows one to fool magic that would otherwise force the user to tell the truth.

  • \$\begingroup\$ Probably the most powerful ability of the archetype (which makes sense, it is level 17, the Wish level). \$\endgroup\$ – Sawyer Mar 31 '16 at 21:43
  • \$\begingroup\$ True, its deadly dangerous in political campaigns \$\endgroup\$ – Nemenia Mar 31 '16 at 22:09
  • \$\begingroup\$ This is literally the only possible answer lol. \$\endgroup\$ – Airatome Apr 1 '16 at 4:47
  • \$\begingroup\$ Well, a GOOlock could potentially do it if he knew who was trying to read his mind. He could use Thought Shield to block his mind, then attempt to deceive the target by sending lies through Awakened Mind telepathy. It requires more DM approval and also has a lesser chance of success (disadvantage, etc.). \$\endgroup\$ – Sawyer Apr 1 '16 at 13:41

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