Progenitus EDH decks are built in such a way that its cast, gains haste and some extra power, and then double strikes someone for lethal commander damage
This 5-Color (WUBRG) deck utilizes a massive "Dragon Tribal" strategy
The artist nailed the 'many colors' part of the name, making the art pop much more than the original's dark and muted color palette
The ability to both draw a card when your stuff is targeted (and before resolution, so you can draw a card to respond to it) and to keep your foes from drawing more than one is very powerful for a 4/4 3-drop that gives you ramp, removal, and countering
With this in mind, its no wonder that sales have been fairly consistent since the Counter Intelligence precon was first revealed
Oko's second ability overwrites all colors and creature types the affected creature has