The message came from the soul.
D-TB05/008 RRR 2022 神々の伝令使 ヘルメス Messenger of the Deities, Hermes
Grade 1 / Normal Unit / Record of Ragnarok – Deity
AUTO When this unit is placed on (RC) from hand, if your vanguard is a <Deity>, you may Soul Charge 1.
AUTO (RC) When the attack this unit boosted hits a vanguard, COST [Soul Blast 1], choose a <Deity> from your soul with grade equal to or less than your vanguard, and call it to your back row (RC).
D-TB05/066 C 2022 滾る闘気 シヴァ Boiling Fighting Spirit, Shiva
Grade 2 / Normal Unit / Record of Ragnarok – Deity
CONT (RC) During your turn, if your vanguard is a Grade 3 or greater <Deity>, this unit gets Power+5000.