Red Obosh decks have been relying on double damage to an excellent effect. But what if you could triple your damage instead?
Fiery Emancipation costs just one more mana than Obosh, but its damage is triple that of Obosh, which makes a mere Shock deal 6 points of damage.
Now imagine how much damage you can deal with a full table of creatures or a full hand of burn spells. Zenith Flare decks have already been quite annoying with all the amounts of damage they can deal, but now they become almost unbeatable.