Blizzard has added a BoA crate in Patch 10.1.7 that lets you send Paracausal Flake (Time Rift currency) to alts for free!

Paracausal Crate is a BoA crate that you can buy for 500 flakes in Fury Incarnate (Patch 10.1.7). It can be send to your alts and opened for 500 flakes, which means the whole process of sending it to other characters is completely FREEĀ and you aren’t losing any flakes.

New BoA Paracausal Flake Crate to send Flakes to your alts!
by u/minimaxir in wow