Commanding Thoughts

Commanding Thought (Costs 2 Legendary Actions). The shard targets a creature it can see within 30 feet of it. The target must succeed on a DC 20 Wisdom saving throw or be charmed until the end of its next turn. While charmed in this way, the target becomes the shard’s puppet, acting and moving in accordance with its telepathic commands. While under the shard’s control, the target can take only the Attack (shard chooses the target) or Dash action on its turn.