Yes. Specifically Moonbeam deals damage at the beginning of a creatures turn, this happens before they do any actions or use any movement. The other trigger for moonbeam's damage is when a creature enters it for the first time in a turn, whether they moved in voluntarily or were pushed in.
If you cast it on an enemy and it becomes their turn will they take damage before they move or take some other action?
Yes. Specifically Moonbeam deals damage at the beginning of a creatures turn, this happens before they do any actions or use any movement. The other trigger for moonbeam's damage is when a creature enters it for the first time in a turn, whether they moved in voluntarily or were pushed in.
Thank you.