Magistrate's Scepter with a charge counter on it).
Easy Prerequisites
You have a repeatable way to allow
Kilo to tap.
Mana Needed
({7} magic symbol) each turn available.
Steps
Tap
Kilo by any method.
Kilo triggers, causing you to proliferate and put a charge counter on
Magistrate's Scepter.
Activate
Staff of Domination's third ability by paying ({3} magic symbol) , untapping
Kilo.
Activate
Staff of Domination's first ability by paying ({1} magic symbol) , untapping it.
Repeat steps 1 through 3 one additional time. Then, repeat steps 1 and 2 one additional time.
Activate
Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, causing you to take an extra turn after this one.
Notes
You can use any method(s) to tap
Kilo three times per turn. If those methods have additional costs (such as life payments, mana, etc.), then you must pay those costs three times as well. This includes
Staff of Domination's fourth ability, but this will cause much more mana to be required.