Beast Summons

{t}, Create a 1/1 green Beast token that has "{p/g}{t}, Sacrifice this creature: create a 2/2 green Beast token that has "{p/g}{t}, Sacrifice this creature: create a 3/3 green Beast token that has "{p/g}{t}, Sacrifice this creature: create a 4/4 green Beast token that has "{p/g}{t}, Sacrifice this creature: create a 5/5 green Beast token that has "{p/g}{t}, Sacrifice this creature: create a 6/6 green Beast token that has "{p/g}{t}, Sacrifice this creature: creature a 20/20 green Beast token."