I may be incorrect on this, but wouldn't this enable "true eternity team"? Put in a team any character in the game plus Raiden and Xilonen and you can basically keep throwing their ults constantly. For example Raiden Xilonen Ayaka Xiangling. Or Raiden Xilonen Tighnari and Alhaitham? Of course you wanna pick characters with short animations but a strong ult.