You have practiced the subtle changes in form granted to you by your slime body allowing you to do such things as change size or form into various shapes, sizes and creatures. This trait can only be learned once you have already learned the slime camouflage feat as it is a more advanced application of the same ability.
-Once per long rest, you can expend or consume the necessary nutrients stored in your body as an action to increase or decrease your size by one size class. The maximum possible size being large and the minimum size being small. Any change in size has no combat application aside from the normal rules applied to the specific size class. Making an attack while enlarged or reduced by this ability would be the equivalent of an unarmed attack using the same unarmed attack bonus and damage you would have while in human or slime form respectively. The only exception to this are other slime feats that specifically mention rules having to do with size.
-As an action you can mimic the appearance of any creature of your size class. Those attempting to see through your disguise must succeed on a Wisdom (perception) check. The DC necessary to see through your disguise is equal to 8 + your wisdom modifier + your proficiency bonus. If you have absorbed the creature you are attempting to mimic before, those who roll to see through your disguise do so with disadvantage. If nobody sees through your disguise, your form is indistinguishable from that of the real thing.
-You may only mimic the appearance, sounds, smells and feel of a creature that is the same size class as you at the time you make the change. For example, if you are large at the time, you may turn into a large creature, but not a medium or small creature. You may choose to become a different sized version of a larger or smaller creature, but your disguise must be the same size as your current size class. You do not gain any of the stats or traits of the creature you disguise yourself as.The disguise lasts for 8 hours and can be dropped as a free action to revert to your slime form, or as an action to go into your human form. Mimicking a creature may be done once per short rest.
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