Venser's Journal [Commander 2021] Leviathan Creatures you control are the

Creatures you control are the chosen type in addition to their other types

If you have face-up "Bokoichi the Freightening Car" you control

This card's maximum number of attacks per turn equals the number of non-Tuner monsters used as its Synchro Material

for damage calculation only

you control the player while that spell is resolving

Venser's Journal [Commander 2021] Leviathan Creatures you control are theSet: Commander 2021 Type: Artifact Rarity: Rare Cost: {5} You have no maximum hand size. At the beginning of your upkeep, you gain 1 life for each card in your hand. A Planeswalker's chronicle spans worlds and civilizations, each page a lifetime.