T13 was cleared with 8500hp (PLD)heq

Which is i110-112

Turn 10 is doable in a full str build at i110.

By the time people are i130 full str builds will be BiS.

I haven't seen a t13 video but parry shouldn't be in a t10-12 BiS.

Parry right now for progression is a good idea but By the time anyone approaches Bis progression will be long gone. (Besides Savage FCoB)