Unlike From The Vault , the 30th anniversary promos keep their original frames - a newer development for old reprints - and primarily keep their original art
Action cards are used instantly upon summoning, unlike item cards which are similar to characters but can not quest
Gx archetypes tend to splash more than others, particularly GU Towns (which is incentivized to take random dual lands anyways)

Active Volcano Aegis Angel Ajani Vengeant Angelic Rocket Argentum Armor Argentum Masticore Avalanche Riders Awaken the Maelstrom Bahamut, Warden of Light Bane of Progress Beast Within Behemoth of Vault 0 Black Bolt, Inhuman King Bladegriff Prototype Blast Zone Blue Elemental Blast Bounty Agent Bramblecrush Break the Spell Bronze Tablet Bumbleflower's Sharepot Capricious Efreet Captain's Hook Cavalier of Dawn Chain of Acid Chaos Confetti Cityscape Leveler Clay Golem Cloudchaser Kestrel Combustion Man Commander Sofia Daguerre Cramped Bunker Culling Scales Dark Temper Deadeye Harpooner Decommission Deep-Fried Plague Myr Defiant Vanguard Desert Twister Despotic Scepter Destructor Dragon Detention Vortex Display of Dominance Druid of Purification Emerald Charm Emergency Eject Engineered Explosives Excavation Technique Extinguisher Battleship Eye of Doom Eye of Singularity Fate of the Sun-Cryst Filigree Fracture Flash Flood Fortunate Few Fracturing Gust Furnace Layer Fury Charm Gauntlets of Chaos Generous Gift Giant Mana Cake Goblin Coward Parade Goblin Cratermaker Goblin Firebomb Green Slime Grenzo's Rebuttal HELIOS One Harmonic Sliver Herald of Vengeance Hydroblast Illusion // Reality

This time, the land enters with a stun counter, shutting the opponent off of mana the next time they untap
That flavor pushed this card to white and meant both the ETB effect and the prize for defeating the battle needed a protective element to it