yugioh hidden arsenal 7 card list YU-GI-OH! - Tin Archduke (HA07-EN060) - 7: Knight of Stars - 1st Edition 1850/850. YU-GI-OH! - Constellar Pleiades (HA07-EN022)

You must pay a certain amount of ink for your character to be played, but you have to wait for the ink to dry (your next turn) before you can use their abilities (unless the card specifies differently.) Use a character ability that doesnt require them to exert

Clifftop Lookout in a deck with a lot of utility lands that doesnt care about fixing, this might be better than existing options

There is no fixed public schedule, so the reliable way to catch one is a live alert TYPA detects Target Pokemon restocks the moment they happen

Zhulodok is also a mana short of being protected by Not of This World, though that spell does trigger the double cascade effect

Incapsula incident ID: 633000720015725886-22008615057035786

Maybe if you have some better detailed pictures (especially of the part at the top-left) I might be able to deduct which one it is (although probably not)