Michael Allen [US] (7/4/2), Terapagos ex/Noctowl 224
Most units can't survive an attack that does 200 damage, so if a Trainer can get Crimson Storm off, it'll be devastating
Lord of Atlantis also granted Islandwalk, for example, and plenty of other buffs are scattered across 30 years of Magic creature types

We Are Not Worthy | Commander | Stephen Johnson Commander (1) 1 Reidane, God of the Worthy Creatures (19) 1 Alms Collector 1 Eidolon of Rhetoric 1 Giver of Runes 1 Keeper of the Accord 1 Knight of the White Orchid 1 Kor Cartographer 1 Mother of Runes 1 Oreskos Explorer 1 Pilgrim's Eye 1 Resolute Watchdog 1 Selfless Savior 1 Selfless Spirit 1 Serra Ascendant 1 Spirit of the Labyrinth 1 Silent Arbiter 1 Skittering Surveyor 1 Solemn Simulacrum 1 Thalia, Guardian of Thraben 1 Weathered Wayfarer Instants (10) 1 Dispatch 1 Fate Forgotten 1 Generous Gift 1 Invoke the Divine 1 Path to Exile 1 Return to Dust 1 Settle the Wreckage 1 Silence 1 Swords to Plowshares 1 Teferi's Protection Sorceries (8) 1 Approach of the Second Sun 1 Austere Command 1 Divine Reckoning 1 Doomskar 1 Fumigate 1 Open the Armory 1 Rout 1 Wrath of God Enchantments (11) 1 All That Glitters 1 Armored Ascension 1 Aura of Silence 1 Authority of the Consuls 1 Blind Obedience 1 Celestial Mantle 1 Ethereal Armor 1 Ghostly Prison 1 Land Tax 1 Smothering Tithe 1 Sphere of Safety The only thing I've got real second thoughts about is the lack of Swiftfoot Boots and Lightning Greaves

Ill pick a Top 3 in each color as well as that colors most interesting reprint
Long story short: Banned in Modern, banned in Legacy, and a very popular card-draw engine in the formats it's still legal in