yugioh spell ruler booster box Yu-Gi-Oh! TCG: (25th) Magic Ruler Booster Packs for the Yu Yu-Gi-Oh 25th Anniversary: Spell Ruler

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

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

Plus you still get white's great removal in the flexible Getaway Glamer and the staples Path to Exile / Swords to Plowshares

Both benefit from [c]Jace, the Mind Sculptor[/c], [c]Stoneforge Mystic[/c], [c]Thoughtseize[/c].....too many cards to list