A.I.M'S Cosmic Cube

A.I.M'S Cosmic Cube enters the battlefield with 3 mind counters on it at the beginning of your upkeep remove a counter when their are no counters flip A.I.M'S Cosmic Cube
{t} add 3 mana in any combination to your mana pool
{t} give target creature protection from white red blue green or black until end of turn