what is in a pokemon booster box 151 (Japanese) in the Pokémon TCG Pokémon TCG: Scarlet & Violet-Obsidian

Blood Scrivener is the effect most similar to this in the cube but not sufficiently to make useful comparisons

to characters or Leaders to increase their attack power

The Assassin and/or commander doesn't even have to be alive or under your control

no deck has answers against every deck gimmick out there

If its controller sacrifices three creatures under their control, it flips into Abolisher of Bloodlines, a 6/5 Eldrazi Vampire which forces the opponent to sacrifice three of their own creatures after its transformation

There'll be digital Ponies: The Galloping sleeves in Magic: The Gathering Arena, there'll be special edition playmats from Ultra PRO, and there'll be a 3-card set