Jebus Crust, God of Slurpees

{t} deal x damage to any target where x is the
amount of Slurpee artifact tokens on the battlefield
{w/u}{1} create 1d20 Slurpee artifact tokens
{ut} sacrifice a Slurpee artifact token
Power and toughness of this card equal to half the
amount of Slurpee artifact tokens minimum of 1