Forum:Gottoms question

my friend says you can synchro summon XX-Saber Gottoms with more than 1 tuner cuz it sez 1 tuner + 1 or more earth monsters, cuz i asked him if he cud do dat whn he synchroed 4 it w/ 2 X-Saber Airbellums n a XX-Saber Fulhelmknight. Can u do dis?