GIANTMAN, GARGANTUAN GENIUS Giant-Man is a sneaky good mana source for green decks that care about big creatures
Collecting specific cards from a pool of over a hundred per expansion, and often needing to pull from multiple expansion packs to get everything you need, takes a long time, a lot of luck, or both
Vault 12: The Necropolis Wasteland Raider Acquired Mutation Assaultron Dominator Bottle-Cap Blast Crimson Caravaneer Duchess, Wayward Tavernkeep Grim Reaper's Sprint Ian the Reckless Junk Jet Megaton's Fate The Motherlode, Excavator Mysterious Stranger Plasma Caster Powder Ganger Rose, Cutthroat Raider Synth Eradicator Thrill-Kill Disciple Vault 21: House Gambit Veronica, Dissident Scribe Wild Wasteland
Final Showdown is a combination of this with an all-are-vanilla ability, protection, and wrath all in one
Brash Taunter has long been a favorite of mine, especially in conjunction with Blasphemous Act