The Sciurus of Bablovia

If The Sciurus of Bablovia is in your graveyard or on the battlefield, you may tap an untapped Squirrel you control to have any player reroll a
die that player rolled.
At the beginning of your upkeep, if The Sciurus
is in your graveyard, create a 1/1 green Squirrel creature token and roll a six-sided die. On a 6, return The Sciurus from your graveyard to the battlefield.