op-13 one piece booster box TCG: Japanese Pack (X8 PACKS) and Sabo return as new Leader cards in OP One Piece Card Game Booster

Also, on a minor note, it's a theme deck, but it's hard to search because there's no common name

Killians Confidence Killian's Confidence offers a measly buff that gets much better in a deck built around gaming pump spells by copying them or rewarding you for casting them with repartee or magecraft triggers

Some of the power Seekers have lost to Taboos, they've regained with Unearth the Ancients, though arguably in a much fairer manner as Unearth the Ancients is susceptible to the dreaded .

The main reason I think this Minotaur kill is remotely close to reasonable is that Deathbellow War Cry is one set removed from Irencrag Feat