yugioh spell ruler booster box Yu-Gi-Oh! TCG: (25th) Including The Forceful Sentry Yugioh 1st Edition Magic Ruler

For context, Hop's Zacian-ex from the sought after Japanese Battle Partners and English Journey Together set has an attack that does 240 damage, and with this Tool alone it can now one-hit knockout a ton of meta-game threats that it faces, such as Bloodmoon Ursaluna-ex

The flexibility of being able to choose a value for X is great because we might have an early-game case of wanting (or needing) to cast it for X of one or two, or we can wait until late-game and sweep a much bigger battlefield

Double Strike reduces the need for much buffing, as any creature with 11 or more power will hit for the required lethal 21 commander damage if they're not blocked

At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control