digimon booster box 1.5 Sinister Order (EX10) by Bandai : Toys & Games just like the original story Digimon BT21 World Convergence Booster

Though don't forget you can unlock secret packs to start customising your own deck later

The next battle or effect damage you would take this turn becomes 0

Barricadeborg Blocker, on the other hand, opens up this Synchro package by enabling Mecha Phantom Beast Auroradon

This is handy for getting over some big threats, being able to defeat monsters with up to 3000 attack

Now, that being said while most Koa'ki Meiru monsters are individually awesome, the ones you'll want for an archetype deck will need to be specific, because you need to be able to have the right cards in-hand to show in the End Phase to keep your monsters from being destroyed

This card has a Link Monster counterpart: "Darkness Metal, the Dragon of Dark Steel"