| Tag Name | Tag Type | Type Enforced | Example | Notes |
|---|---|---|---|---|
| xTile | Short | - | /testfor @e {xTile:0s} | - |
| yTile | Short | - | /testfor @e {ytile:0s} | - |
| zTile | Short | - | /testfor @e {ztile:0s} | - |
| inTile | String | ✓ | /testfor @e {inTile:"minecraft:air"} | - |
| inTile | Byte | - | /testfor @e {inTile:0b} | Use "inTile" TagString instead. |
| inGround | Byte (Boolean) | - | /testfor @e {inGround:0b} | - |
| direction | List (Double) | ✓ | /summon WitherSkull ~ ~1 ~ {direction:[0.0,0.0,0.0]} | Must be defined as a TagList for the fireball to exist. |