Revealed from the TCG page, they also give a brief explaination of the theme’s strategy!

Master necromancy with the trickery of a Zombie theme! The wicked Jack-o-Bolan from Ignition Assault heralds the arrival of a new wave of Zombies to reinforce their endless army. Eldlich the Golden Lord (a Zombie of infinite wealth) can spend spend spend his countless treasures of a thousand years to eliminate any card on the field he wants, then buy his way back from the Graveyard so he can do it again and again!

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