You must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can’t perform actions with this trait. Manipulate actions often trigger reactions.
Spellshape
Actions with the spellshape trait tweak the properties of your spells. You must use a spellshape action directly before casting the spell you want to alter. If you use any action (including free actions and reactions) other than casting a spell directly after, you waste the benefits of the spellshape action. Any additional effects added by a spellshape action are part of the spell's effect, not of the spellshape action itself.
If your next action is to Cast a Spell with the fungus or plant trait, a garland of plants grows in a 10-foot burst in the spell’s range. The plants are difficult terrain and hazardous terrain, covered in your choice of thorns or poisonous vines. Any creature that moves into one of these squares or ends its turn in one takes 2d6 damage (piercing damage for thorns or poison for vines). A creature can take this damage only once per turn. You and your familiar are immune to this damage.
The plants last for 1 minute or until you cast another Garland Spell, whichever comes first.
The damage increases to 3d6 at 16th level and 4d6 at 20th level.
