Limited Telepathy. The Corrupt Copper Dragon can magically communicate simple ideas, emotions, and images telepathically with any creature within 100 feet of it that can understand a language.
Tethered. The Corrupt Copper Dragon has physically deformed and attached onto its lair and cannot move unless it takes its turn to Untether.
Untethered. The Corrupt Copper Dragon can move in this state and not attached, but cannot Anchor. Can use its turn to Tether.
Tether/Untether. The dragon either attaches (Tether) or unattaches (Untether) itself from its lair. Uses its action (but not bonus action)
Multiattack. The dragon makes two attacks: one with its bite and one with its claws.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6+2) piercing damage.
Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (2d4 + 2) slashing damage.
Breath Weapons (Recharge 5–6). The dragon uses one of the following breath weapons.
Acid Breath. The dragon exhales acid in an 20-foot line that is 5 feet wide. Each creature in that line must make a DC 11 Dexterity saving throw, taking 6 (2d6) acid damage on a failed save, or half as much damage on a successful one.
Slowing Breath. The dragon exhales gas in a 15-foot cone. Each creature in that area must succeed on a DC 10 Constitution saving throw. On a failed save, the creature can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In addition, the creature can use either an action or a bonus action on its turn, but not both. These effects last for 1 minute. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself with a successful save.
Anchor. The Corrupt Copper Dragon can deform its body to gain +1 AC. But loses Multiattack ability. Can only use when Tethered.
Mercy Kill Telepathy. When the Corrupt Copper Dragon is damaged below 1/2 of its Hit Points, will communicate a plea to end its suffering to any of the creatures who have upcoming turns.
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