Wildcard Usage (PSL 13 vs PSL 12 vs PSL 11 vs PSL 10 vs. PSL 9 vs. PSL 8 Vs. PSL 7 Vs. PSL 6 Vs. PSL 5 vs PSL 4)
PSL 4= 40/85 or 47.06% PSL 5= 59/86 or 68.60% PSL 6= 58/88 or 65.91% PSL 7= 39/75 or 52.00% PSL 8= 47/80 or 58.75% PSL 9= 45/80 or 56.25% PSL 10= 57/87 or 65.52% PSL 11= 28/65 or 43.08% PSL 12=27/49 or 55.10% PSL 13=20/55 or 36.36%
As we can see Wildcard Usage sank to new lows in PSL 13. Who knows if this trend continues, but I think these stats are interesting nonetheless.