It's also the most loosely constructed in terms of overall synergy, which might put some players off, though Y'shtola itself is likely the best face commander of the four
Essentially, a deck that can get multiple lands out per turn, cast giant creatures early, and mash opponents to death using those giant creatures along with some trample sprinkled in here and there
EARTH [16-066R] Heretical Knight Garland The chosen Forward will gain +4000 power and Brave even if Heretical Knight Garland loses its ability
However, of course it won't be exactly the same
You can combine that with Rakdos, Lord of Riots, a famous commander that lowers the cost of creature spells, also based on life loss, to make a powerful combo
Despite costing an additional mana and not working on lands, Utter End tends to be the better card these days due to its instant nature and exiling effect