Whilst we are waiting for both in-paper events and a well supported app from Bandai, my preferred method is to use Tabletop Simulator (Available on Steam and is regularly on sale), and using either the Digimon Card Game 2020 workshop content by Zaffy or it's derivative published by BoneShanks
While they have added support options, Blue-Eyes leave themselves vulnerable to deliver the biggest attack possible, requiring some backup
Special Summon 1 "Crystron" monster from your hand
Of course, Kamani had already knew who the culprit was before he took the case
Deck 8.5 37 Beast-Eyes Pendulum Dragon Fusion Monster Effect Monster - 8 Dragon 3000 2000 1 DARK Dragon-Type monster + 1 Beast-Type monsterMust be either Fusion Summoned, or Special Summoned by Tributing the above cards you control (in which case you do not use "Polymerization"), and cannot be Special Summoned by other ways
Next, activate Hyakken Koukoku and use the effect of his Sylvan Bansho in the opponent's field zone to Special Summon the high-level Vaylantz in his Spell/Trap zone, converting it into "Vaylantz G-Grand Duke"