Stage 1[Requires 50,000PL]-Adds 5,000 to all stats.
Stage 2[Requires 200,000PL]-Adds 15,000 to all stats.
Stage 3[Requires 400,000PL]-Adds 35,000 to all stats.
Stage 4[Requires 1,600,000PL]-Adds 50,000 to all stats.