Items are consumed even if the skill they are supposed to cast fails
- You have 1 scroll.
- You use a skill that leaves you in CD.
- You use the scroll.
- You target the enemy.
- You click.
- You are still in CD.
- Skill fails because you are in CD, but the item is consumed, because you had a valid target and attempted to use it.
Other cases:
- You get silenced right before you pick your target, and attempt to cast the skill
- You have an unwalkable cell between you and the target, the character may or may not begin to move to get in range, and fail to