This reverts commit 1f8283a3389908f340de3fcb5bc030ebbd4ae456.

skills/mechanics/setlevel.md

+## Description
+Causes the casting mob to change its level.
+
+
+## Attributes
+| Attribute | Aliases   | Description                                                          | Default |
+|-----------|-----------|----------------------------------------------------------------------|---------|
+| action    | a         | The type of the operation to perform                                 | SET<!--type:SET,ADD,SUBTRACT,MULTIPLY,DIVIDE-->|
+| level     | l         | Amount used in the operation                                         | 1       |
+
+  
+## Action Attribute
+Available actions are
+- `SET`
+- `ADD`
+- `SUBTRACT`
+- `MULTIPLY`
+- `DIVIDE`
+
+
+## Examples
+This will set the mob level to 3 when it spawns
+```yaml
+    - setlevel{a=set;l=3} @self ~onSpawn
+```
+##
+This will increase the mob level by 1 each time it kills a player
+```yaml
+    - setlevel{a=add;l=1} ~onKillPlayer
+```
+##
+This will set the level of the mob to a random value between 1 and 5 when it spawns, plus the score of the `__GLOBAL__` fake player from the "testlevel" scoreboard.
+```yaml
+    - setlevel{a=set;l="<random.1to5> + <global.score.testlevel>"} @self ~onSpawn
+```
+> The usage of [Placeholders](/Skills/Placeholders) and [Math Operations](/Skills/Math) inside of a non-string attribute is [**Premium Only**](Premium-Features)
+
+## Aliases
+- [x] modifylevel
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