yugioh card wall Koa'ki Meiru - SESL-EN050 Super Rare Yu-Gi-Oh Card of the Day,

Agency Outfitter Ajani's Aid Analyze the Pollen Ancient Vendetta Angrath's Fury Ashiok's Forerunner Auditore Ambush Basri's Aegis Blood Speaker Boonweaver Giant Boseiju Reaches Skyward Burning-Rune Demon Call the Mountain Chocobo Chandra's Firemaw Chandra's Flame Wave Chandra's Outburst Chandra, Heart of Fire Clay-Fired Bricks Counterbore Cranial Extraction Crumble to Dust Dark Petition Dark Supplicant Deadly Cover-Up Deicide Delivery Moogle Demonic Counsel Dina's Guidance Dispossess Domri's Nodorog Dovin's Dismissal Elspeth's Devotee Eradicate Eternal Dragon Ethereal Elk Evolution Charm Extirpate Fang-Druid Summoner Final Parting Fork in the Road From Father to Son Frostpyre Arcanist Garruk's Warsteed Garruk, the Veil-Cursed Gate to the Afterlife Gideon's Battle Cry Gideon's Resolve Gifts Ungiven Goldmane Griffin Grand Master of Flowers Grasping Current Grave Upheaval Grim Reminder Grinning Totem Hoarding Dragon Horizon Spellbomb Iname as One Increasing Ambition Infernal Rebirth Infinite Obliteration Intuition Invasion of Arcavios Invasive Surgery Jace's Ruse Jarad's Orders Journey for the Elixir Kassandra, Eagle Bearer Kotose, the Silent Spider Landscaper Colos Liberating Combustion Liliana's Influence Liliana's Scorn

Take Ambush, make it so that it doesnt affect flying creatures, and your opponent can spend one mana to remove first strike

While none of the individual cards are truly broken on their own, the mechanic itself arguably broke the Commander format, at least on a competitive level

General Kreat certainly fits the mold, providing a steady stream of Goblins while simultaneously functioning like Impact Tremors