****Work in progress but the general idea sounds fun****
Use the violence of your enemies to destroy something they cherish. Trick them into seeing what they want from your harm while using their energy to harm something they care about.
Use your bonus action to start this disguise. After the start of this disguise any magical, melee, ranged, or other damage that is taken to you or your allies within 10 ft is absorbed and transferred into the enemy's cherished object. While this disguise is active you can not move, take reactions, actions, or any other bonus actions. While the disguise is active your enemies will see you and your allies within the 10 ft radius take damage and act out the pain and suffering that they wish within their minds.
To discern this disguise, a creature can use its action to inspect your appearance and must succeed on an Intelligence (Investigation) or Wisdom (Perception) check against your spell save DC. The creature or creatures are forced to make this check on their turn after the start of this disguise, and if this check fails subsequent turns will only need to make these checks if the character has a reason to believe they are not harming these creatures. This can occur if there is a good reason why they would believe these characters should be dead by now, or if one of the allies steps out of the illusion revealing no harm has been done. The skill check can be made once again to see through the illusion. If this subsequent check passes then any damage done after affects the target/targets as normal.
Once any damage is truly done to you or you choose to stop the spell the damage done during the illusion is transferred into the material components/cherished object and your disguised damages disappear. If the transferred damage is large enough to destroy or kill the material component/cherished object is destroyed or dies. If the target or targets were not aware of the illusion when the material component/object is destroyed they suffer a catastrophic sense of loss and failure causing one turn of the stunning effect.
* - On the turn prior you must ** - (An item, individual (grappled or someone you are touching), or piece of material that the target or targets wants, desires, loves, or wishes to acquire.)
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