25th anniversary yugioh booster box Konami Yu-Gi-Oh! Trading Card Game: Rarity Collection : Toys & Games for free yugioh 25th anniversary booster boxes

Is Mighty Servant of Leuk-o legal to play

There's some superlative stuff, like Progenitus and Darksteel Colossus, two cards I personally wasn't expecting to see in Standard any time soon

That's basically what we've got with Monk Gyatso

Aeve, Progenitor Ooze All of History, All at Once Amphibian Downpour Astral Steel Brain Freeze Chatterstorm Crackling Spellslinger Crow Storm Dragonstorm Elemental Eruption Empty the Warrens Fiery Encore Flusterstorm Galvanic Relay Grapeshot Ground Rift Haze of Rage Hindering Touch Hunting Pack Ignite Memories Krosan Adaptation (playtest) Mind's Desire Mordor on the March Prismari, the Inspiration Radstorm Ral, Crackling Wit Reaping the Graves Scattershot Spreading Insurrection Sprouting Vines Storm of Memories Storm, Force of Nature Stormscale Scion Tempest Technique Temporal Fissure Tendrils of Agony Volcanic Awakening Weather the Storm Wing Shards