Myrkul, Lord of Bones (Check it out here) was built as the leader of a Midrange and Constellation deck that ran a bunch of dorks with ETB abilities for value (like Liliana's Specter and Archon of Cruelty), sacrificed them for value (High Market and Dockside Chef), netted a return as an enchantment to trigger another ETB for it and constellation dorks (like Underworld Coinsmith and Eidolon of Blossoms) and then added in some ramp, answers, card flow, and called it a deck
If you do, create a number of 1/1 black Vampire Knight creature tokens with lifelink equal to the number of cards you've drawn this turn
Use cards like Nuclear Fallout if the opponent is getting ahead on board to reset and flood them with rad counters, then drop a gigantic Tarmogoyf which returns with its own Fallout theme in the form of the Scrounging Deathclaw
Wayward Swordtooth and Tranquil Frillback make up your early curve, with the deck able to take advantage of Emerald Medalion as a ramp piece, and Tribute to the World Tree as card advantage
It certainly is one of the MTG Legendary Creatures of all time
In a recent interview with IGN, Art Director Ovidio Cartagena and VP of Game Design Aaron Forsythe discussed the teams approach when synthesising one of the most well-known fantasy stories ever into the five Mana colours and mechanical limitations of Magic: The Gathering