Staff of the Traveling Mage

Source: Homebrew - https://goo.gl/W6w4yM

requires attunement

This staff contains 7 charges, and regains 1d6+1 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff teleports out of your hand to an unknown location, possibly on another plane of existence. You can cast the following spells by expending the corresponding number of charges.

Misty Step – 2 Charges

Blink – 3 Charges

Dimension Door – 4 Charges

This staff is made from a dark, intricately carved wood, though it is very sturdy. A magical orb floats at the top of the staff between prongs, and a small gem is set at the bottom. The orb and gem change colors depending on which plane the staff finds itself.