Revealed from their YouTube video, a Miko and a Royal Paladin High Beast.
V-BT03/052 C 鵬翼の斎女 チヅル Miko of Phoenix Wings, Chizuru
Grade 2 / Normal Unit / United Sanctuary – Oracle Think Tank – Human
[AUTO](RC)[1/Turn]: When you draw a card, COST [Counter Blast (1)], and this unit gets [Power]+10000 and “Boost” until end of turn.
V-BT03/046 C しふとがる Shiftgal
Grade 1 / Normal Unit / United Sanctuary – Royal Paladin – High Beast
[AUTO](VC/RC): When placed, COST [discard a grade 1 or less card from your hand], draw a card, and this unit gets [Power]+3000 until end of turn.