Harden. At the start of its turn, the elemental can choose to have disadvantage on all melee weapon attack rolls during that turn, causing all attack rolls against it to have disadvantage until the start of its next turn.
Sharpen. At the start of its turn, the elemental can choose to have advantage on all melee weapon attack rolls during that turn, causing all attack rolls against it to have advantage until the start of its next turn.
Crystal Knife. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 6 (2d4+1) Slashing damage.
Description
Crystal like monsters (Think Regice).
On each of the effigies is a symbol in the shape of an open eye. The marks appear in a different place on each effigy and seem to be formed naturally from cracks in the crystal. Noticing the marks requires a DC 10 Intelligence (Investigation) check.
A DC 12 Intelligence (Arcana or Nature) check reveals the vulnerabilities and immunities of the creatures.
The effigies shatter when they are defeated. A crystal knife can be recovered from each effigy along with 2d4 teardrop crystals worth 5 gp each.