It was never legal in the Modern format, as it was on the initial banlist when the format was officially launched in August 2011
Even though Jason has solved the aggro problem, with cheap, recurrable attackers, today it remains harder than I'd like to build a solid B/U control deck without falling back on crutches like Grave Titan or Wurmcoil Engine
The Thief lets you draw then discard a card when one of your creatures deals damage to an opponent or you draw three with a full party
Terminate is just a better Terror, but it will definitely get the job done
I also have four mana open
The Eternal Wanderer operates in the 1v1 creature combat space and says my best samurai can beat your best creature, of course, creating samurai for free each turn is great too