Xeno Almajestar, Astroea=Bico Masques
This card can only be ridden from a grade 3 "Astroea". By removing a different "Astroea" card from hand, soul, or drop, you can retire one of your opponent's rear-guards and this unit gets drive +1! When this unit attacks, by Counter-Blasting 1 & Soul-Blasting 3, you can bind all of the Critical trigger cards that were Soul-Blasted for this cost, Stand one of your rear-guards, and that unit and this unit get Power +5000 for every two Critical triggers in your bind zone! Destroy your opponent's board as you increase your own drive, and overwhelm your opponent with consecutive attacks from your powered up rear-guards!

Twin Marvel Dragon
When you Soul-Blast 3 or more cards at the same time for the cost of your vanguard's ability, you can look at the top card of your deck, choose to put it on the top of the deck or into your soul, and this unit gets Power +2000! Fulfil the activation conditions of this card's ability with the cost of "Astroea", and you can manipulate the next card on the top of your deck to zero in on getting triggers!

Masque of Hydragrum
Look at the top five cards of your deck, and add up to one "Dragontree" or "Masques" unit card to your hand! When this card is in drop, if you have a grade 3 vanguard without "Masques" in its card name, by revealing a grade 3 "Masques" card from hand, you can ride the card revealed for this cost as Stand! If you rode, put this card into soul, and if your opponent's vanguard is grade 3 or greater, and you did not persona ride this turn, you can activate persona ride! Towards the end of the game, superior ride "Astroea=Bico Masques" from "Astroea=Unica", and make use of persona ride to claim your way to victory!