Tele Block is a unique combat spell that allows you to prevent your target from using teleports. This spell can only be cast on other players in the Wilderness. If successful, the target will be unable to use any method of teleportation except the Mage of Zamorak. The blocking effect also prevents entering the Corporeal Beast's cave, use of teleportation levers, etc.

The teleportation blocking effect lasts for 5 minutes. If the target had Protect from Magic active at the time the spell was cast on them, the duration is reduced by 50% to only 2 and a half minutes. If the target logs out, leaves the Wilderness by any means, or the timer expires - the effect is lifted. This spell cannot be cast on the same target until the effect has worn off.

A Magic level of 85 is required for this spell, giving 95 experience upon success and 84 upon failure. It requries 1 Law rune, 1 Death rune, and 1 Chaos rune to cast.