Transformation-to-Transformation Ability (SSJJ)

The '''Transformation-to-Transformation technique is a conjectured name for a move used in canon to rapidly switch between forms like the Super Saiyan God and Super Saiyan Blue forms.

Overview
Future Trunks first used this form in his match against Vegeta to bait him in with Super Saiyan 3rd Grade and than use Super Saiyan 2 to attack Vegeta. Vegeta uses this to rapidly switch between Super Saiyan God and Super Saiyan Blue to combat Goku Black in the manga, and the anime Goku uses this form against Dyspo. In the Fanga; Dial uses this in his training with the Grand Priest to switch between his 3rd Form and his 3rd Form - Horrified State.